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Title: Combined single crystal polarized XAFS and XRD at high pressure: probing the interplay between lattice distortions and electronic order at multiple length scales in high T c cuprates

Journal Article · · High Pressure Research
 [1];  [2];  [2];  [2];  [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Washington Univ., St. Louis, MO (United States). Dept. of Physics; Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Here, some of the most exotic material properties derive from electronic states with short correlation length (similar to 10-500 Å), suggesting that the local structural symmetry may play a relevant role in their behavior. Here, we discuss the combined use of polarized x-ray absorption fine structure and x-ray diffraction at high pressure as a powerful method to tune and probe structural and electronic orders at multiple length scales. Besides addressing some of the technical challenges associated with such experiments, we illustrate this approach with results obtained in the cuprate La1.875Ba0.125CuO4, in which the response of electronic order to pressure can only be understood by probing the structure at the relevant length scales.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
SC00112704; AC02-06CH11357; 1047478
OSTI ID:
1263911
Alternate ID(s):
OSTI ID: 1337162
Report Number(s):
BNL-112302-2016-JA; R&D Project: PO010; KC0201060
Journal Information:
High Pressure Research, Journal Name: High Pressure Research; ISSN 0895-7959
Publisher:
Taylor & FrancisCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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Local structure of Sr 2 CuO 3.3 , a 95 K cuprate superconductor without CuO 2 planes journal February 2020