skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor

Abstract

High-temperature superconductivity often emerges in the proximity of a symmetry-breaking ground state. For superconducting iron arsenides, in addition to the antiferromagnetic ground state, a small structural distortion breaks the crystal’s C 4 rotational symmetry in the underdoped part of the phase diagram. We reveal that the representative iron arsenide Ba(Fe 1-xCo x) 2As 2 develops a large electronic anisotropy at this transition via measurements of the in-plane resistivity of detwinned single crystals, with the resistivity along the shorter b axis ρb being greater than ρ a. The anisotropy reaches a maximum value of ~2 for compositions in the neighborhood of the beginning of the superconducting dome. For temperatures well above the structural transition, uniaxial stress induces a resistivity anisotropy, indicating a substantial nematic susceptibility.

Authors:
 [1];  [1];  [2];  [2];  [3];  [4];  [1]
  1. Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Stanford Univ., CA (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Stanford Univ., CA (United States); National Inst. of Informatics, Tokyo (Japan)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1443125
Report Number(s):
SLAC-PUB-14404
Journal ID: ISSN 0036-8075
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Science
Additional Journal Information:
Journal Volume: 329; Journal Issue: 5993; Journal ID: ISSN 0036-8075
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Chu, J. -H., Analytis, J. G., De Greve, K., McMahon, P. L., Islam, Z., Yamamoto, Y., and Fisher, I. R. In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor. United States: N. p., 2010. Web. doi:10.1126/science.1190482.
Chu, J. -H., Analytis, J. G., De Greve, K., McMahon, P. L., Islam, Z., Yamamoto, Y., & Fisher, I. R. In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor. United States. doi:10.1126/science.1190482.
Chu, J. -H., Analytis, J. G., De Greve, K., McMahon, P. L., Islam, Z., Yamamoto, Y., and Fisher, I. R. Fri . "In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor". United States. doi:10.1126/science.1190482. https://www.osti.gov/servlets/purl/1443125.
@article{osti_1443125,
title = {In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor},
author = {Chu, J. -H. and Analytis, J. G. and De Greve, K. and McMahon, P. L. and Islam, Z. and Yamamoto, Y. and Fisher, I. R.},
abstractNote = {High-temperature superconductivity often emerges in the proximity of a symmetry-breaking ground state. For superconducting iron arsenides, in addition to the antiferromagnetic ground state, a small structural distortion breaks the crystal’s C4 rotational symmetry in the underdoped part of the phase diagram. We reveal that the representative iron arsenide Ba(Fe1-xCox)2As2 develops a large electronic anisotropy at this transition via measurements of the in-plane resistivity of detwinned single crystals, with the resistivity along the shorter b axis ρb being greater than ρa. The anisotropy reaches a maximum value of ~2 for compositions in the neighborhood of the beginning of the superconducting dome. For temperatures well above the structural transition, uniaxial stress induces a resistivity anisotropy, indicating a substantial nematic susceptibility.},
doi = {10.1126/science.1190482},
journal = {Science},
number = 5993,
volume = 329,
place = {United States},
year = {2010},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 489 works
Citation information provided by
Web of Science

Save / Share: