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 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.
- Authors:
-
- Stanford Univ., CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Stanford Univ., CA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Stanford Univ., CA (United States); National Inst. of Informatics, Tokyo (Japan)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), 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. https://doi.org/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. https://doi.org/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 = {Fri Aug 13 00:00:00 EDT 2010},
month = {Fri Aug 13 00:00:00 EDT 2010}
}
Web of Science
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