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Title: Relationship between charge stripe order and structural phase transitions in La{sub 1.875}Ba{sub 0.125-x}Sr{sub x}CuO{sub 4}

Abstract

The nature of charge stripe order and its relationship with structural phase transitions were studied using synchrotron x-ray diffraction in La{sub 1.875}Ba{sub 0.125-x}Sr{sub x}CuO{sub 4} (0.05{<=}x{<=}0.10). For x=0.05, as temperature increased, incommensurate superlattice peaks associated with the charge order disappeared just at the structural phase transition temperature, T{sub d2}. However, for x=0.075 and 0.09, the superlattice peaks still existed as a short range correlation even above T{sub d2}, indicating a precursor of charge ordering. Furthermore, temperature dependences of the superlattice peak intensity, correlation length, and incommensurability for x=0.05 are different from those for x=0.075 and 0.09. These results suggest that the transition process into the charge stripe order strongly correlates with the order of the structural phase transitions. A quantitative comparison of the structure factor associated with the charge order have been also made for all the samples.

Authors:
;  [1]; ; ;  [2]; ; ;  [3]
  1. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan)
  2. Institute for Materials Research, Tohoku University, Sendai 980-8577 (Japan)
  3. Japan Synchrotron Radiation Research Institute, Hyogo 679-5198 (Japan)
Publication Date:
OSTI Identifier:
20664907
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 70; Journal Issue: 13; Other Information: DOI: 10.1103/PhysRevB.70.134512; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; CRYSTAL STRUCTURE; CUPRATES; HIGH-TC SUPERCONDUCTORS; LANTHANUM COMPOUNDS; PHASE TRANSFORMATIONS; STRONTIUM COMPOUNDS; STRUCTURE FACTORS; SUPERLATTICES; SYNCHROTRONS; TEMPERATURE DEPENDENCE; TRANSITION TEMPERATURE; X-RAY DIFFRACTION

Citation Formats

Kimura, H, Noda, Y, Goka, H, Fujita, M, Yamada, K, Mizumaki, M, Ikeda, N, and Ohsumi, H. Relationship between charge stripe order and structural phase transitions in La{sub 1.875}Ba{sub 0.125-x}Sr{sub x}CuO{sub 4}. United States: N. p., 2004. Web. doi:10.1103/PhysRevB.70.134512.
Kimura, H, Noda, Y, Goka, H, Fujita, M, Yamada, K, Mizumaki, M, Ikeda, N, & Ohsumi, H. Relationship between charge stripe order and structural phase transitions in La{sub 1.875}Ba{sub 0.125-x}Sr{sub x}CuO{sub 4}. United States. https://doi.org/10.1103/PhysRevB.70.134512
Kimura, H, Noda, Y, Goka, H, Fujita, M, Yamada, K, Mizumaki, M, Ikeda, N, and Ohsumi, H. Fri . "Relationship between charge stripe order and structural phase transitions in La{sub 1.875}Ba{sub 0.125-x}Sr{sub x}CuO{sub 4}". United States. https://doi.org/10.1103/PhysRevB.70.134512.
@article{osti_20664907,
title = {Relationship between charge stripe order and structural phase transitions in La{sub 1.875}Ba{sub 0.125-x}Sr{sub x}CuO{sub 4}},
author = {Kimura, H and Noda, Y and Goka, H and Fujita, M and Yamada, K and Mizumaki, M and Ikeda, N and Ohsumi, H},
abstractNote = {The nature of charge stripe order and its relationship with structural phase transitions were studied using synchrotron x-ray diffraction in La{sub 1.875}Ba{sub 0.125-x}Sr{sub x}CuO{sub 4} (0.05{<=}x{<=}0.10). For x=0.05, as temperature increased, incommensurate superlattice peaks associated with the charge order disappeared just at the structural phase transition temperature, T{sub d2}. However, for x=0.075 and 0.09, the superlattice peaks still existed as a short range correlation even above T{sub d2}, indicating a precursor of charge ordering. Furthermore, temperature dependences of the superlattice peak intensity, correlation length, and incommensurability for x=0.05 are different from those for x=0.075 and 0.09. These results suggest that the transition process into the charge stripe order strongly correlates with the order of the structural phase transitions. A quantitative comparison of the structure factor associated with the charge order have been also made for all the samples.},
doi = {10.1103/PhysRevB.70.134512},
url = {https://www.osti.gov/biblio/20664907}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 13,
volume = 70,
place = {United States},
year = {2004},
month = {10}
}