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Title: NMR evidence for inhomogeneous glassy behavior driven by nematic fluctuations in iron arsenide superconductors

Abstract

We present 75As nuclear magnetic resonance spin-lattice and spin-spin relaxation rate data in Ba(Fe1–xCox)2As2 and Ba(Fe1–xCux)2As2 as a function of temperature, doping, and magnetic field. The relaxation curves exhibit a broad distribution of relaxation rates, consistent with inhomogeneous glassy behavior up to 100 K. The doping and temperature response of the width of the dynamical heterogeneity is similar to that of the nematic susceptibility measured by elastoresistance measurements. Lastly, we argue that quenched random fields which couple to the nematic order give rise to a nematic glass that is reflected in the spin dynamics.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [2];  [2];  [3];  [3];  [3];  [4];  [1]
  1. Univ. of California, Davis, CA (United States)
  2. Iowa State Univ., Ames, IA (United States)
  3. Florida State Univ., Tallahassee, FL (United States)
  4. IFW Dresden, Dresden (Germany)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE; National Science Foundation (NSF)
OSTI Identifier:
1227431
Alternate Identifier(s):
OSTI ID: 1223737; OSTI ID: 1321766
Report Number(s):
IS-J-8837; LA-UR-15-27695
Journal ID: ISSN 1098-0121; PRBMDO
Grant/Contract Number:  
DMR1005393; DMR1157490; GR3330/2; AC02-07CH11358; AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 16; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; material science

Citation Formats

Dioguardi, A. P., Lawson, M. M., Bush, B. T., Crocker, J., Shirer, K. R., Nisson, D. M., Kissikov, T., Ran, S., Bud'ko, S. L., Canfield, P. C., Yuan, S., Kuhns, P. L., Reyes, A. P., Grafe, H. -J., and Curro, N. J. NMR evidence for inhomogeneous glassy behavior driven by nematic fluctuations in iron arsenide superconductors. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.92.165116.
Dioguardi, A. P., Lawson, M. M., Bush, B. T., Crocker, J., Shirer, K. R., Nisson, D. M., Kissikov, T., Ran, S., Bud'ko, S. L., Canfield, P. C., Yuan, S., Kuhns, P. L., Reyes, A. P., Grafe, H. -J., & Curro, N. J. NMR evidence for inhomogeneous glassy behavior driven by nematic fluctuations in iron arsenide superconductors. United States. https://doi.org/10.1103/PhysRevB.92.165116
Dioguardi, A. P., Lawson, M. M., Bush, B. T., Crocker, J., Shirer, K. R., Nisson, D. M., Kissikov, T., Ran, S., Bud'ko, S. L., Canfield, P. C., Yuan, S., Kuhns, P. L., Reyes, A. P., Grafe, H. -J., and Curro, N. J. 2015. "NMR evidence for inhomogeneous glassy behavior driven by nematic fluctuations in iron arsenide superconductors". United States. https://doi.org/10.1103/PhysRevB.92.165116. https://www.osti.gov/servlets/purl/1227431.
@article{osti_1227431,
title = {NMR evidence for inhomogeneous glassy behavior driven by nematic fluctuations in iron arsenide superconductors},
author = {Dioguardi, A. P. and Lawson, M. M. and Bush, B. T. and Crocker, J. and Shirer, K. R. and Nisson, D. M. and Kissikov, T. and Ran, S. and Bud'ko, S. L. and Canfield, P. C. and Yuan, S. and Kuhns, P. L. and Reyes, A. P. and Grafe, H. -J. and Curro, N. J.},
abstractNote = {We present 75As nuclear magnetic resonance spin-lattice and spin-spin relaxation rate data in Ba(Fe1–xCox)2As2 and Ba(Fe1–xCux)2As2 as a function of temperature, doping, and magnetic field. The relaxation curves exhibit a broad distribution of relaxation rates, consistent with inhomogeneous glassy behavior up to 100 K. The doping and temperature response of the width of the dynamical heterogeneity is similar to that of the nematic susceptibility measured by elastoresistance measurements. Lastly, we argue that quenched random fields which couple to the nematic order give rise to a nematic glass that is reflected in the spin dynamics.},
doi = {10.1103/PhysRevB.92.165116},
url = {https://www.osti.gov/biblio/1227431}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 16,
volume = 92,
place = {United States},
year = {Fri Oct 16 00:00:00 EDT 2015},
month = {Fri Oct 16 00:00:00 EDT 2015}
}

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Cited by: 32 works
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Works referenced in this record:

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journal, August 2010


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Cu Substitution Effects on the Local Magnetic Properties of Ba ( Fe 1 x Cu x ) 2 As 2 : A Site-Selective As 75 and Cu 63 NMR Study
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Local magnetic inhomogeneities in Ba ( Fe 1 x Ni x ) 2 As 2 as seen via A 75 s NMR
journal, October 2010


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journal, September 2013


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journal, May 2014


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Works referencing / citing this record:

Uniaxial strain control of spin-polarization in multicomponent nematic order of BaFe2As2
journal, March 2018


Tuning the interplay between nematicity and spin fluctuations in Na1−xLi x FeAs superconductors
journal, May 2018


Strain relaxation behaviour of vortices in a multiferroic superconductor
journal, February 2019


Ferroelasticity, anelasticity and magnetoelastic relaxation in Co-doped iron pnictide: Ba(Fe 0.957 Co 0.043 ) 2 As 2
journal, February 2019


NMR study of nematic spin fluctuations in a detwinned single crystal of underdoped Ba ( Fe 1 x Co x ) 2 As 2
journal, October 2016


Magnetic ground state of KCr 3 As 3
journal, May 2019


Strain relaxation behaviour of vortices in a multiferroic superconductor
text, January 2019