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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 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:
 [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 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}
}

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Cited by: 630 works
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Figures / Tables:

Figure 1 Figure 1: (A) Diagram of the crystal structure of BaFe2As2 in the antiferromagnetic state. The magnetic moments on the iron sites point in the a direction and align antiparallel along the longer a axis and parallel along the shorter b axis. (B) Diagram illustrating a twin boundary between two domainsmore » that form on cooling through the structural transition at $T_s$ Dense twinning in macroscopic crystals obscures any in-plane electronic anisotropy in bulk measurements. (C) Diagram of the device used to detwin single crystals in situ. The sample is held sandwiched between a cantilever and a substrate, with a screw in the center of the cantilever to adjust the uniaxial pressure. The (0 0 1) surface of the crystal is exposed, enabling transport measurements.« less

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Unveiling the hidden nematicity and spin subsystem in FeSe
text, January 2016


Spin-Orbit Interactions and the Nematicity Observed in the Fe-Based Superconductors
text, January 2016


Dynamical regimes of vortex flow in type-II superconductors with parallel twin boundaries
text, January 2017


Observation of orbital ordering and origin of the nematic order in FeSe
text, January 2018


Strain tuning and anisotropic spin correlations in iron-based systems
text, January 2019


Disorder-Induced Electronic Nematicity
text, January 2019


Genome sequences of six Phytophthora species threatening forest ecosystems
journal, December 2016


Hall-plot of the phase diagram for Ba(Fe1−xCox)2As2
journal, June 2016

  • Iida, Kazumasa; Grinenko, Vadim; Kurth, Fritz
  • Scientific Reports, Vol. 6, Issue 1
  • DOI: 10.1038/srep28390

Strain and vector magnetic field tuning of the anomalous phase in Sr 3 Ru 2 O 7
journal, February 2017

  • Brodsky, Daniel O.; Barber, Mark E.; Bruin, Jan A. N.
  • Science Advances, Vol. 3, Issue 2
  • DOI: 10.1126/sciadv.1501804

Antiferroic electronic structure in the nonmagnetic superconducting state of the iron-based superconductors
journal, August 2017

  • Shimojima, Takahiro; Malaeb, Walid; Nakamura, Asuka
  • Science Advances, Vol. 3, Issue 8
  • DOI: 10.1126/sciadv.1700466

Evidence for Orbital Order and its Relation to Superconductivity in FeSe0.4Te0.6
text, January 2013


Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.