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Keppert S, Aichner B, Rohringer P, Bodea MA, Müller B, Karrer M, Kleiner R, Goldobin E, Koelle D, Pedarnig JD, Lang W. Temporal Evolution of Defects and Related Electric Properties in He-Irradiated YBa 2Cu 3O 7-δ Thin Films. Int J Mol Sci 2024; 25:7877. [PMID: 39063119 PMCID: PMC11277344 DOI: 10.3390/ijms25147877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Revised: 07/15/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Thin films of the superconductor YBa2Cu3O7-δ (YBCO) were modified by low-energy light-ion irradiation employing collimated or focused He+ beams, and the long-term stability of irradiation-induced defects was investigated. For films irradiated with collimated beams, the resistance was measured in situ during and after irradiation and analyzed using a phenomenological model. The formation and stability of irradiation-induced defects are highly influenced by temperature. Thermal annealing experiments conducted in an Ar atmosphere at various temperatures demonstrated a decrease in resistivity and allowed us to determine diffusion coefficients and the activation energy ΔE=(0.31±0.03) eV for diffusive oxygen rearrangement within the YBCO unit cell basal plane. Additionally, thin YBCO films, nanostructured by focused He+-beam irradiation into vortex pinning arrays, displayed significant commensurability effects in magnetic fields. Despite the strong modulation of defect densities in these pinning arrays, oxygen diffusion during room-temperature annealing over almost six years did not compromise the signatures of vortex matching, which remained precisely at their magnetic fields predicted by the pattern geometry. Moreover, the critical current increased substantially within the entire magnetic field range after long-term storage in dry air. These findings underscore the potential of ion irradiation in tailoring the superconducting properties of thin YBCO films.
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Affiliation(s)
- Sandra Keppert
- Institute of Applied Physics, Johannes Kepler University Linz, 4040 Linz, Austria; (S.K.); (J.D.P.)
| | - Bernd Aichner
- Faculty of Physics, University of Vienna, 1090 Vienna, Austria; (B.A.)
| | - Philip Rohringer
- Faculty of Physics, University of Vienna, 1090 Vienna, Austria; (B.A.)
| | - Marius-Aurel Bodea
- Institute of Applied Physics, Johannes Kepler University Linz, 4040 Linz, Austria; (S.K.); (J.D.P.)
| | - Benedikt Müller
- Physikalisches Institut, Center for Quantum Science (CQ) and LISA+, University of Tübingen, 72076 Tübingen, Germany (R.K.); (E.G.); (D.K.)
| | - Max Karrer
- Physikalisches Institut, Center for Quantum Science (CQ) and LISA+, University of Tübingen, 72076 Tübingen, Germany (R.K.); (E.G.); (D.K.)
| | - Reinhold Kleiner
- Physikalisches Institut, Center for Quantum Science (CQ) and LISA+, University of Tübingen, 72076 Tübingen, Germany (R.K.); (E.G.); (D.K.)
| | - Edward Goldobin
- Physikalisches Institut, Center for Quantum Science (CQ) and LISA+, University of Tübingen, 72076 Tübingen, Germany (R.K.); (E.G.); (D.K.)
| | - Dieter Koelle
- Physikalisches Institut, Center for Quantum Science (CQ) and LISA+, University of Tübingen, 72076 Tübingen, Germany (R.K.); (E.G.); (D.K.)
| | - Johannes D. Pedarnig
- Institute of Applied Physics, Johannes Kepler University Linz, 4040 Linz, Austria; (S.K.); (J.D.P.)
| | - Wolfgang Lang
- Faculty of Physics, University of Vienna, 1090 Vienna, Austria; (B.A.)
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2
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Sun X, Wu D, Zhu W, Chen X, Sharma R, Yang JC, Zhou G. Atomic Origin of the Autocatalytic Reduction of Monoclinic CuO in a Hydrogen Atmosphere. J Phys Chem Lett 2021; 12:9547-9556. [PMID: 34570978 DOI: 10.1021/acs.jpclett.1c02369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Reducibility is key for the use of bulk metal oxides in chemical transformations involving redox reactions, but probing microscopic processes of oxide reduction is challenging. This is because the insulating nature of bulk oxides restricts ion and electron spectroscopic measurements of oxide surfaces. Herein, using a combination of environmental transmission electron microscopy and atomistic modeling, we report direct in situ atomic-scale observations of the surface and subsurface dynamics and show that the hydrogen-induced CuO reduction occurs through the receding motion of Cu-O/Cu bilayer steps at the surface, the formation of the partially reduced CuO superstructure by the self-ordering of O vacancies in the subsurface, and the collapse of Cu-O layers in the bulk. All these substeps can be traced back to the progressively increased concentration and activity of O vacancies in the surface and subsurface of the oxide, thereby leading to the self-accelerated oxide reduction. These results demonstrate the microscopic details that may have a broader applicability in modulating various redox processes.
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Affiliation(s)
- Xianhu Sun
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, New York 13902, United States
| | - Dongxiang Wu
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, New York 13902, United States
| | - Wenhui Zhu
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, New York 13902, United States
| | - Xiaobo Chen
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, New York 13902, United States
| | - Renu Sharma
- Nanoscale Device Characterization Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Judith C Yang
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Guangwen Zhou
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, New York 13902, United States
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3
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Marinković S, Fernández-Rodríguez A, Collienne S, Alvarez SB, Melinte S, Maiorov B, Rius G, Granados X, Mestres N, Palau A, Silhanek AV. Direct Visualization of Current-Stimulated Oxygen Migration in YBa 2Cu 3O 7-δ Thin Films. ACS NANO 2020; 14:11765-11774. [PMID: 32806022 DOI: 10.1021/acsnano.0c04492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The past years have witnessed major advancements in all-electrical doping control on cuprates. In the vast majority of cases, the tuning of charge carrier density has been achieved via electric field effect by means of either a ferroelectric polarization or using a dielectric or electrolyte gating. Unfortunately, these approaches are constrained to rather thin superconducting layers and require large electric fields in order to ensure sizable carrier modulations. In this work, we focus on the investigation of oxygen doping in an extended region through current-stimulated oxygen migration in YBa2Cu3O7-δ superconducting bridges. The underlying methodology is rather simple and avoids sophisticated nanofabrication process steps and complex electronics. A patterned multiterminal transport bridge configuration allows us to electrically assess the directional counterflow of oxygen atoms and vacancies. Importantly, the emerging propagating front of current-dependent doping δ is probed in situ by optical microscopy and scanning electron microscopy. The resulting imaging techniques, together with photoinduced conductivity and Raman scattering investigations, reveal an inhomogeneous oxygen vacancy distribution with a controllable propagation speed permitting us to estimate the oxygen diffusivity. These findings provide direct evidence that the microscopic mechanism at play in electrical doping of cuprates involves diffusion of oxygen atoms with the applied current. The resulting fine control of the oxygen content would permit a systematic study of complex phase diagrams and the design of electrically addressable devices.
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Affiliation(s)
- Stefan Marinković
- Experimental Physics of Nanostructured Materials, Q-MAT, CESAM, Université de Liège, Sart Tilman, B-4000 Liège, Belgium
| | | | - Simon Collienne
- Experimental Physics of Nanostructured Materials, Q-MAT, CESAM, Université de Liège, Sart Tilman, B-4000 Liège, Belgium
| | - Sylvain Blanco Alvarez
- Experimental Physics of Nanostructured Materials, Q-MAT, CESAM, Université de Liège, Sart Tilman, B-4000 Liège, Belgium
| | - Sorin Melinte
- Institute of Information and Communication Technologies, Electronics and Applied Mathematics, Université catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
| | - Boris Maiorov
- Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Gemma Rius
- Institute of Microelectronics of Barcelona (IMB-CNM, CSIC), Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Xavier Granados
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Narcís Mestres
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Anna Palau
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Alejandro V Silhanek
- Experimental Physics of Nanostructured Materials, Q-MAT, CESAM, Université de Liège, Sart Tilman, B-4000 Liège, Belgium
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Sun X, Zhu W, Wu D, Li C, Wang J, Zhu Y, Chen X, Boscoboinik JA, Sharma R, Zhou G. Surface-reaction induced structural oscillations in the subsurface. Nat Commun 2020; 11:305. [PMID: 31949160 PMCID: PMC6965640 DOI: 10.1038/s41467-019-14167-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 12/16/2019] [Indexed: 11/09/2022] Open
Abstract
Surface and subsurface are commonly considered as separate entities because of the difference in the bonding environment and are often investigated separately due to the experimental challenges in differentiating the surface and subsurface effects. Using in-situ atomic-scale transmission electron microscopy to resolve the surface and subsurface at the same time, we show that the hydrogen-CuO surface reaction results in structural oscillations in deeper atomic layers via the cycles of ordering and disordering of oxygen vacancies in the subsurface. Together with atomistic calculations, we show that the structural oscillations in the subsurface are induced by the hydrogen oxidation-induced cyclic loss of oxygen from the oxide surface. These results demonstrate the propagation of the surface reaction dynamics into the deeper layers in inducing nonstoichiometry in the subsurface and have significant implications in modulating various chemical processes involving surface-subsurface mass transport such as heterogeneous catalysis, oxidation, corrosion and carburization.
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Affiliation(s)
- Xianhu Sun
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA
| | - Wenhui Zhu
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA
| | - Dongxiang Wu
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA
| | - Chaoran Li
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA
| | - Jianyu Wang
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA
| | - Yaguang Zhu
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA
| | - Xiaobo Chen
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA
| | | | - Renu Sharma
- Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Guangwen Zhou
- Department of Mechanical Engineering & Materials Science and Engineering Program, State University of New York, Binghamton, NY, 13902, USA.
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5
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Cayado P, Sánchez-Valdés CF, Stangl A, Coll M, Roura P, Palau A, Puig T, Obradors X. Untangling surface oxygen exchange effects in YBa 2Cu 3O 6+x thin films by electrical conductivity relaxation. Phys Chem Chem Phys 2017; 19:14129-14140. [PMID: 28524207 DOI: 10.1039/c7cp01855j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetics of oxygen incorporation (in-diffusion process) and excorporation (out-diffusion process), in YBa2Cu3O6+x (YBCO) epitaxial thin films prepared using the chemical solution deposition (CSD) methodology by the trifluoroacetate route, was investigated by electrical conductivity relaxation measurements. We show that the oxygenation kinetics of YBCO films is limited by the surface exchange process of oxygen molecules prior to bulk diffusion into the films. The analysis of the temperature and oxygen partial pressure influence on the oxygenation kinetics has drawn a consistent picture of the oxygen surface exchange process enabling us to define the most likely rate determining step. We have also established a strategy to accelerate the oxygenation kinetics at low temperatures based on the catalytic influence of Ag coatings thus allowing us to decrease the oxygenation temperature in the YBCO thin films.
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Affiliation(s)
- P Cayado
- Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
| | - C F Sánchez-Valdés
- Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
| | - A Stangl
- Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
| | - M Coll
- Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
| | - P Roura
- University of Girona, Montilivi Campus, Edif. PII, E17o71, Girona, Catalonia, Spain
| | - A Palau
- Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
| | - T Puig
- Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
| | - X Obradors
- Institut de Ciència de Materials de Barcelona (CSIC), Campus UAB, 08193, Bellaterra, Catalonia, Spain.
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6
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Zhang X, Catlow CRA. Molecular Dynamics Simulation of High-Tc Superconductors. MOLECULAR SIMULATION 2006. [DOI: 10.1080/08927029408022528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- X. Zhang
- a Department of Physics , National University of Singapore , Lower Kent Ridge Road, Singapore , 0511
| | - C. R. A. Catlow
- b Davy Faraday Research Laboratory, The Royal Institution of Great Britain , 21 Albemarle Street, London , WlX 4BS , U.K
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7
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Yang D, Lu H, Song H, Mo J, Li G, Chen C, Guo Y, Hu X. Experimental study of oxygen diffusion and permeation through YBa2Cu3O7−x membranes. J Memb Sci 2004. [DOI: 10.1016/j.memsci.2003.12.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Malavasi L, Flor G. Oxygen Chemical Diffusion Coefficient in Manganite Thin Films by Isothermal Electric Resistivity Measurements. J Phys Chem B 2003. [DOI: 10.1021/jp0362281] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lorenzo Malavasi
- Dipartimento di Chimica Fisica “M. Rolla”, INSTM, IENI/CNR Unità di Pavia of Università di Pavia, V.le Taramelli 16, I-27100 Pavia, Italy
| | - Giorgio Flor
- Dipartimento di Chimica Fisica “M. Rolla”, INSTM, IENI/CNR Unità di Pavia of Università di Pavia, V.le Taramelli 16, I-27100 Pavia, Italy
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9
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10
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11
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Dediu V, Matacotta FC. Oxygen diffusion in epitaxial GdBa2Cu3O7- delta thin films. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:16259-16263. [PMID: 9985706 DOI: 10.1103/physrevb.54.16259] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Bock A, Kürsten R, Brühl M, Dieckmann N, Merkt U. Desorption of oxygen from YBa2Cu3O6+x films studied by Raman spectroscopy. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:4300-4309. [PMID: 9986335 DOI: 10.1103/physrevb.54.4300] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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13
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Mueller DR, Wallace JS, Jia JJ, O'Brien WL, Dong Q, Callcott TA, Miyano KE, Ederer DL. Barium contributions to the valence electronic structure of YBa2Cu3O7- delta, PrBa2Cu3O7- delta, and other barium-containing compounds. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:9702-9708. [PMID: 9980021 DOI: 10.1103/physrevb.52.9702] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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14
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Jiménez-Melendo M, De Arellano-López A, Domínguez-Rodríguez A, Goretta K, Routbort J. Diffusion-controlled plastic deformation of YBa2Cu3Ox. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/0956-7151(94)00447-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Mogilevsky R, Levi-Setti R, Pashmakov B, Liu L, Zhang K, Jaeger HM, Buchholz DB, Chang RP, Veal BW. Direct measurements of room-temperature oxygen diffusion in YBa2Cu3Ox. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:6420-6423. [PMID: 10011649 DOI: 10.1103/physrevb.49.6420] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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16
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LaGraff JR, Payne DA. Chemical diffusion of oxygen in single-crystal and polycrystalline YBa2Cu3O6+x determined by electrical-resistance measurements. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:3380-3390. [PMID: 10006425 DOI: 10.1103/physrevb.47.3380] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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18
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Cui FZ, Xie J, Li HD. Preferential radiation damage of the oxygen sublattice in YBa2Cu3O7: A molecular-dynamics simulation. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:11182-11185. [PMID: 10002994 DOI: 10.1103/physrevb.46.11182] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Lee SH, Bae SC, Ku JK, Shin HJ. Oxygen diffusion in epitaxial YBa2Cu3O7-x thin films. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:9142-9146. [PMID: 10002701 DOI: 10.1103/physrevb.46.9142] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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20
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Zhang X, Catlow CR. Molecular-dynamics study of oxygen diffusion in YBa2Cu3O6.91. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:457-462. [PMID: 10002232 DOI: 10.1103/physrevb.46.457] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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21
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Aarnink WA, IJsselsteijn RP, Gao J, Rogalla H. Oxygen transport in c-axis-oriented high-Tc superconducting YBa2Cu3O7- delta thin films, studied in situ by ellipsometry. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 45:13002-13007. [PMID: 10001366 DOI: 10.1103/physrevb.45.13002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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22
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Yu X, Sayer M. Temperature dependence of critical currents in YBa2Cu3O7- delta ceramics. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:2348-2355. [PMID: 9999789 DOI: 10.1103/physrevb.44.2348] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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23
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Rothman SJ, Routbort JL, Welp U, Baker JE. Anisotropy of oxygen tracer diffusion in single-crystal YBa2Cu3O7- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 44:2326-2333. [PMID: 9999786 DOI: 10.1103/physrevb.44.2326] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Szabó G. Monte Carlo simulation of reorientation driven by oxygen transport in YBa2Cu3O6.5. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:13614-13617. [PMID: 9997199 DOI: 10.1103/physrevb.43.13614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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26
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Hermes H, Forster M, Schaefer H. High-temperature equilibrium study of the oxygen-site occupancy in YBa2Cu3O7- delta by positron annihilation. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:10399-10404. [PMID: 9996761 DOI: 10.1103/physrevb.43.10399] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Balzarotti A, Motta N, Patella F, Sgarlata A, Paroli P, Balestrino G, Marinelli M. X-ray-photoemission-spectroscopy study of the surface deterioration of Bi2Sr2CaCu2O8 and Bi1.7Pb0.3Sr2CaCu2O8 single crystals at 26 K. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:11500-11503. [PMID: 9996912 DOI: 10.1103/physrevb.43.11500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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28
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Rodbell KP, Tu KN, Lanford WA, Guo XS. Fine-line interactions in Al/Hf/Al thin films. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:1422-1432. [PMID: 9997392 DOI: 10.1103/physrevb.43.1422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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29
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LaGraff JR, Han PD, Payne DA. Resistance measurements and oxygen out-diffusion near the orthorhombic-tetragonal phase transformation in single-crystal YBa2Cu3O7- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1991; 43:441-447. [PMID: 9996230 DOI: 10.1103/physrevb.43.441] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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30
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Sabras J, Peraudeau G, Berjoan R, Monty C. Oxygen diffusion, Oxygen vacancy concentrations and chemical diffusion in Y1 − UBa2 − VCu3 − WO7−δ. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0022-5088(90)90220-e] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Bonetti E, Campari E, Cammarota P, Casagrande A, Mantovani S. A study on the role of Oxygen in the inelastic behaviour of YBa2Cu3O7 − x. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0022-5088(90)90219-a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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32
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Choi JS, Sarikaya M, Aksay IA, Kikuchi R. Theory of oxygen diffusion in the YBa2Cu3O7-x superconducting compound. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:4244-4254. [PMID: 9995950 DOI: 10.1103/physrevb.42.4244] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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33
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Oxygen-defect flux pinning, anomalous magnetization and intra-grain granularity in YBa2Cu307–δ. Nature 1990. [DOI: 10.1038/346332a0] [Citation(s) in RCA: 720] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Poberaj I, Mihailovic D, Bernik S. Room-temperature oxygen diffusion and ordering in YBa2Cu3O7-y studied with time-resolved Raman spectroscopy. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:393-398. [PMID: 9994552 DOI: 10.1103/physrevb.42.393] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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35
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Baetzold RC. Atomistic study of defects in YBa2Cu3O7. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:56-66. [PMID: 9994509 DOI: 10.1103/physrevb.42.56] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Gupta D, Laibowitz RB, Lacey JA. Cation (63Ni) diffusion in YBa2Cu3O7- delta epitaxial films. PHYSICAL REVIEW LETTERS 1990; 64:2675-2678. [PMID: 10041781 DOI: 10.1103/physrevlett.64.2675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Rothman SJ, Routbort JL, Baker JE. Tracer diffusion of oxygen in YBa2Cu3O7- delta. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:8852-8860. [PMID: 9991368 DOI: 10.1103/physrevb.40.8852] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Li J, Wang SQ, Mayer JW, Tu KN. Oxygen-diffusion-induced phase boundary migration in copper oxide thin films. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:12367-12370. [PMID: 9948095 DOI: 10.1103/physrevb.39.12367] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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