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Rocci M, Azpeitia J, Trastoy J, Perez-Muñoz A, Cabero M, Luccas RF, Munuera C, Mompean FJ, Garcia-Hernandez M, Bouzehouane K, Sefrioui Z, Leon C, Rivera-Calzada A, Villegas JE, Santamaria J. Proximity Driven Commensurate Pinning in YBa2Cu3O7 through All-Oxide Magnetic Nanostructures. Nano Lett 2015; 15:7526-7531. [PMID: 26441137 DOI: 10.1021/acs.nanolett.5b03261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The design of artificial vortex pinning landscapes is a major goal toward large scale applications of cuprate superconductors. Although disordered nanometric inclusions have shown to modify their vortex phase diagram and to produce enhancements of the critical current ( MacManus-Driscoll , J. L. ; Foltyn , S. R. ; Jia , Q. X. ; Wang , H. ; Serquis , A. ; Civale , L. ; Maiorov , B. ; Hawley , M. E. ; Maley , M. P. ; Peterson , D. E. Nat. Mater. 2004 , 3 , 439 - 443 and Yamada , Y. ; Takahashi , K. ; Kobayashi , H. ; Konishi , M. ; Watanabe , T. ; Ibi , A. ; Muroga , T. ; Miyata , S. ; Kato , T. ; Hirayama , T. ; Shiohara , Y. Appl. Phys. Lett. 2005 , 87 , 1 - 3 ), the effect of ordered oxide nanostructures remains essentially unexplored. This is due to the very small nanostructure size imposed by the short coherence length, and to the technological difficulties in the nanofabrication process. Yet, the novel phenomena occurring at oxide interfaces open a wide spectrum of technological opportunities to interplay with the superconductivity in cuprates. Here, we show that the unusual long-range suppression of the superconductivity occurring at the interface between manganites and cuprates affects vortex nucleation and provides a novel vortex pinning mechanism. In particular, we show evidence of commensurate pinning in YBCO films with ordered arrays of LCMO ferromagnetic nanodots. Vortex pinning results from the proximity induced reduction of the condensation energy at the vicinity of the magnetic nanodots, and yields an enhanced friction between the nanodot array and the moving vortex lattice in the liquid phase. This result shows that all-oxide ordered nanostructures constitute a powerful, new route for the artificial manipulation of vortex matter in cuprates.
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Affiliation(s)
- M Rocci
- GFMC, Dpto. Fisica Aplicada III, Univ. Complutense Madrid , 28040 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - J Azpeitia
- Instituto de Ciencia de Materiales de Madrid , 28049 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - J Trastoy
- Unité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université , Paris-Saclay, 91767, Palaiseau, France
- Université Paris Sud , 91407 Orsay, France
| | - A Perez-Muñoz
- GFMC, Dpto. Fisica Aplicada III, Univ. Complutense Madrid , 28040 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - M Cabero
- GFMC, Dpto. Fisica Aplicada III, Univ. Complutense Madrid , 28040 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - R F Luccas
- Instituto de Ciencia de Materiales de Madrid , 28049 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - C Munuera
- Instituto de Ciencia de Materiales de Madrid , 28049 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - F J Mompean
- Instituto de Ciencia de Materiales de Madrid , 28049 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - M Garcia-Hernandez
- Instituto de Ciencia de Materiales de Madrid , 28049 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - K Bouzehouane
- Unité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université , Paris-Saclay, 91767, Palaiseau, France
- Université Paris Sud , 91407 Orsay, France
| | - Z Sefrioui
- GFMC, Dpto. Fisica Aplicada III, Univ. Complutense Madrid , 28040 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - C Leon
- GFMC, Dpto. Fisica Aplicada III, Univ. Complutense Madrid , 28040 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - A Rivera-Calzada
- GFMC, Dpto. Fisica Aplicada III, Univ. Complutense Madrid , 28040 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
| | - J E Villegas
- Unité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université , Paris-Saclay, 91767, Palaiseau, France
- Université Paris Sud , 91407 Orsay, France
| | - J Santamaria
- GFMC, Dpto. Fisica Aplicada III, Univ. Complutense Madrid , 28040 Madrid, Spain
- Unidad Asociada Laboratorio de Heteroestructuras con Aplicación en Espintrónica" UCM-CSIC , 28049 Madrid, Spain
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Galvis JA, Herrera E, Guillamón I, Azpeitia J, Luccas RF, Munuera C, Cuenca M, Higuera JA, Díaz N, Pazos M, García-Hernandez M, Buendía A, Vieira S, Suderow H. Three axis vector magnet set-up for cryogenic scanning probe microscopy. Rev Sci Instrum 2015; 86:013706. [PMID: 25638089 DOI: 10.1063/1.4905531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We describe a three axis vector magnet system for cryogenic scanning probe microscopy measurements. We discuss the magnet support system and the power supply, consisting of a compact three way 100 A current source. We obtain tilted magnetic fields in all directions with maximum value of 5T along z-axis and of 1.2T for XY-plane magnetic fields. We describe a scanning tunneling microscopy-spectroscopy (STM-STS) set-up, operating in a dilution refrigerator, which includes a new high voltage ultralow noise piezodrive electronics and discuss the noise level due to vibrations. STM images and STS maps show atomic resolution and the tilted vortex lattice at 150 mK in the superconductor β-Bi2Pd. We observe a strongly elongated hexagonal lattice, which corresponds to the projection of the tilted hexagonal vortex lattice on the surface. We also discuss Magnetic Force Microscopy images in a variable temperature insert.
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Affiliation(s)
- J A Galvis
- Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales Nicolás Cabrera, Condensed Matter Physics Center (IFIMAC), Facultad de Ciencias Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - E Herrera
- Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales Nicolás Cabrera, Condensed Matter Physics Center (IFIMAC), Facultad de Ciencias Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - I Guillamón
- Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales Nicolás Cabrera, Condensed Matter Physics Center (IFIMAC), Facultad de Ciencias Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - J Azpeitia
- Unidad Asociada de Bajas Temperaturas y Altos Campos Magnéticos, UAM, CSIC, Cantoblanco, E-28049 Madrid, Spain
| | - R F Luccas
- Unidad Asociada de Bajas Temperaturas y Altos Campos Magnéticos, UAM, CSIC, Cantoblanco, E-28049 Madrid, Spain
| | - C Munuera
- Unidad Asociada de Bajas Temperaturas y Altos Campos Magnéticos, UAM, CSIC, Cantoblanco, E-28049 Madrid, Spain
| | - M Cuenca
- SEGAINVEX, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - J A Higuera
- SEGAINVEX, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - N Díaz
- SEGAINVEX, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - M Pazos
- SEGAINVEX, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - M García-Hernandez
- Unidad Asociada de Bajas Temperaturas y Altos Campos Magnéticos, UAM, CSIC, Cantoblanco, E-28049 Madrid, Spain
| | - A Buendía
- Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales Nicolás Cabrera, Condensed Matter Physics Center (IFIMAC), Facultad de Ciencias Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - S Vieira
- Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales Nicolás Cabrera, Condensed Matter Physics Center (IFIMAC), Facultad de Ciencias Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - H Suderow
- Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condensada, Instituto de Ciencia de Materiales Nicolás Cabrera, Condensed Matter Physics Center (IFIMAC), Facultad de Ciencias Universidad Autónoma de Madrid, 28049 Madrid, Spain
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Silhanek AV, Milosević MV, Kramer RBG, Berdiyorov GR, Van de Vondel J, Luccas RF, Puig T, Peeters FM, Moshchalkov VV. Formation of stripelike flux patterns obtained by freezing kinematic vortices in a superconducting Pb film. Phys Rev Lett 2010; 104:017001. [PMID: 20366384 DOI: 10.1103/physrevlett.104.017001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2009] [Indexed: 05/29/2023]
Abstract
We demonstrate experimentally and theoretically that the dissipative state of superconducting samples with a periodic array of holes at high current densities consists of flux rivers resulting from a short-range attractive interaction between vortices. This dynamically induced vortex-vortex attraction results from the migration of quasiparticles out of the vortex core (kinematic vortices). We have directly visualized the formation of vortex chains by scanning Hall probe microscopy after freezing the dynamic state by a field cooling procedure at a constant bias current. Similar experiments carried out in a sample without holes show no hint of flux river formation. We shed light on this nonequilibrium phenomena modeled by time-dependent Ginzburg-Landau simulations.
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Affiliation(s)
- A V Silhanek
- Institute for Nanoscale Physics and Chemistry, Nanoscale Superconductivity and Magnetism Pulsed Fields Group, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium
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