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John MW, Sier D, Ekanayake RSK, Schalken MJ, Tran CQ, Johannessen B, de Jonge MD, Kappen P, Chantler CT. High-accuracy transmission and fluorescence XAFS of zinc at 10 K, 50 K, 100 K and 150 K using the hybrid technique. JOURNAL OF SYNCHROTRON RADIATION 2023; 30:147-168. [PMID: 36601934 PMCID: PMC9814049 DOI: 10.1107/s1600577522010293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/24/2022] [Indexed: 06/17/2023]
Abstract
The most accurate measurements of the mass attenuation coefficient for metals at low temperature for the zinc K-edge from 9.5 keV to 11.5 keV at temperatures of 10 K, 50 K, 100 K and 150 K using the hybrid technique are reported. This is the first time transition metal X-ray absorption fine structure (XAFS) has been studied using the hybrid technique and at low temperatures. This is also the first hybrid-like experiment at the Australian Synchrotron. The measured transmission and fluorescence XAFS spectra are compared and benchmarked against each other with detailed systematic analyses. A recent method for modelling self-absorption in fluorescence has been adapted and applied to a solid sample. The XAFS spectra are analysed using eFEFFIT to provide a robust measurement of the evolution of nanostructure, including such properties as net thermal expansion and mean-square relative displacement. This work investigates crystal dynamics, nanostructural evolution and the results of using the Debye and Einstein models to determine atomic positions. Accuracies achieved, when compared with the literature, exceed those achieved by both relative and differential XAFS, and represent a state-of-the-art for future structural investigations. Bond length uncertainties are of the order of 20-40 fm.
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Affiliation(s)
- Marcus W. John
- School of Physics, University of Melbourne, Melbourne, Australia
| | - Daniel Sier
- School of Physics, University of Melbourne, Melbourne, Australia
| | | | | | | | | | | | - Peter Kappen
- Australian Synchrotron, ANSTO, Clayton, Australia
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Willa K, Diao Z, Campanini D, Welp U, Divan R, Hudl M, Islam Z, Kwok WK, Rydh A. Nanocalorimeter platform for in situ specific heat measurements and x-ray diffraction at low temperature. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:125108. [PMID: 29289216 DOI: 10.1063/1.5016592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recent advances in electronics and nanofabrication have enabled membrane-based nanocalorimetry for measurements of the specific heat of microgram-sized samples. We have integrated a nanocalorimeter platform into a 4.5 T split-pair vertical-field magnet to allow for the simultaneous measurement of the specific heat and x-ray scattering in magnetic fields and at temperatures as low as 4 K. This multi-modal approach empowers researchers to directly correlate scattering experiments with insights from thermodynamic properties including structural, electronic, orbital, and magnetic phase transitions. The use of a nanocalorimeter sample platform enables numerous technical advantages: precise measurement and control of the sample temperature, quantification of beam heating effects, fast and precise positioning of the sample in the x-ray beam, and fast acquisition of x-ray scans over a wide temperature range without the need for time-consuming re-centering and re-alignment. Furthermore, on an YBa2Cu3O7-δ crystal and a copper foil, we demonstrate a novel approach to x-ray absorption spectroscopy by monitoring the change in sample temperature as a function of incident photon energy. Finally, we illustrate the new insights that can be gained from in situ structural and thermodynamic measurements by investigating the superheated state occurring at the first-order magneto-elastic phase transition of Fe2P, a material that is of interest for magnetocaloric applications.
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Affiliation(s)
- K Willa
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - Z Diao
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - D Campanini
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - U Welp
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - R Divan
- Center for Nanoscale Materials, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - M Hudl
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Z Islam
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - W-K Kwok
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439, USA
| | - A Rydh
- Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden
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Booth CH, Bridges F, Boyce JB, Claeson T, Lairson BM, Liang R, Bonn DA. Comparison of local structure measurements from c-axis polarized XAFS between a film and a single crystal of YBa2Cu3O7- delta as a function of temperature. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:9542-9554. [PMID: 9984696 DOI: 10.1103/physrevb.54.9542] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Choy JH, Jung DY, Choi QW. X-ray Photoelectron Spectroscopic Evidence for Cu3+Valence State in Superconducting Phase, YBa2Cu3O7-δ. ACTA ACUST UNITED AC 1990. [DOI: 10.1080/00268949008031739] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Guo J, Ellis DE, Alp EE, Goodman GL. Polarized copper K-edge x-ray-absorption spectra in YBa2Cu3O7-y. PHYSICAL REVIEW. B, CONDENSED MATTER 1990; 42:251-265. [PMID: 9994534 DOI: 10.1103/physrevb.42.251] [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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Kosugi N, Kondoh H, Tajima H, Kuroda H. Cu K-edge XANES of (La1-xSrx)2CuO4, YBa2Cu3Oy and related Cu oxides. valence, structure and final-state effects on 1s-4pπ and 1s-4pσ absorption. Chem Phys 1989. [DOI: 10.1016/0301-0104(89)87014-4] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim JH, Levin K, Auerbach A. Assessment of Fermi-liquid description for the normal state of high-Tc superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:11633-11647. [PMID: 9947995 DOI: 10.1103/physrevb.39.11633] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Qian M, Stern EA, Ma Y, Ingalls R, Sarikaya M, Thiel B, Kurosky R, Han C, Hutter L, Aksay I. Nickel impurities in the Y-Ba-Cu-O 90-K superconductor. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:9192-9199. [PMID: 9947646 DOI: 10.1103/physrevb.39.9192] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Boyce JB, Bridges F, Claeson T, Nygren M. Temperature dependence of the local structure of YBa2Cu3O7- delta with varying oxygen content: An x-ray-absorption study. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:6555-6566. [PMID: 9947295 DOI: 10.1103/physrevb.39.6555] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Changes in the copper K-edge x-ray absorption spectrum of YBa(2)Cu(3)O(7) across the critical temperature indicate that, accompanying the superconducting transition, the mean square relative displacement of some fraction of the Cu2-O4 bonds becomes smaller or more harmonic (or both), that there may be a slight increase in the associated Cul-O4 distance, and that electronic states involving these atom pairs become more atomic-like. If there is an association between the superconductivity and this lattice instability, then the bridging axial oxygen is of central importnce in determining the high tranition temperature of YBa(2)Cu(3)O(7). Because this structural perturbation will affect the dynamic polrizability of the copper oxygen sublattice, it is consistent with an excitonic pairing mhanism in these materials.
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Foltin J. Attractive interaction between electrons: An electron-pairing mechanism for superconductivity. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:10900-10902. [PMID: 9945950 DOI: 10.1103/physrevb.38.10900] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Yang CY, Heald SM, Tranquada JM, Moodenbaugh AR, Xu Y. Lattice vibrational studies of superconducting YBa2Cu3O7 by polarized extended x-ray-absorption fine-structure measurements. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:6568-6574. [PMID: 9945330 DOI: 10.1103/physrevb.38.6568] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Heald SM, Tranquada JM, Moodenbaugh AR, Xu Y. Orientation-dependent x-ray-absorption near-edge studies of high-Tc superconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:761-764. [PMID: 9945248 DOI: 10.1103/physrevb.38.761] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Zhang K, Bunker GB, Zhang G, Zhao ZX, Chen LQ, Huang YZ. Extended x-ray-absorption fine-structure experiment on the high-Tc superconductor YBa2Cu. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 37:3375-3380. [PMID: 9944928 DOI: 10.1103/physrevb.37.3375] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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