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Title: From Ising Resonant Fluctuations to Static Uniaxial Order in Antiferromagnetic and Weakly Superconducting CeCo ( In 1 - x Hg x ) 5 ( x = 0.01 )

Abstract

CeCo (In 0.990Hg 0.010) 5 is a charge doped variant of the d-wave CoCoIn 5 superconductor with coexistent antiferromagnetic and superconducting transitions occurring at T N = 3.4 and T c = 1.4 K, respectively. We use neutron diffraction and spectroscopy to show that the magnetic resonant fluctuations present in the parent superconducting phase are replaced by collinear c -axis magnetic order with three-dimensional Ising critical fluctuations. No low-energy transverse spin fluctuations are observable in this doping-induced antiferromagnetic phase and the dynamic resonant spectral weight predominately shifts to the elastic channel. Static (τ > 0.2 ns) collinear Ising order is proximate to superconductivity in CeCoIn 5 and is stabilized through hole doping with Hg.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [6];  [6]
  1. Univ. of Edinburgh, Edinburgh (United Kingdom). School of Physics and Astronomy
  2. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research; Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science
  3. Forschungszentrum Juelich GmbH, Grenoble (France). Juelich Centre for Neutron Science at ILL
  4. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab., ISIS Neutron Source
  5. Univ. of Missouri, Columbia, MO (United States). Dept. of Physics and Astronomy
  6. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1479972
Alternate Identifier(s):
OSTI ID: 1460925
Report Number(s):
LA-UR-18-29780
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 3; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Material Science

Citation Formats

Stock, C., Rodriguez-Rivera, J. A., Schmalzl, K., Demmel, F., Singh, D. K., Ronning, F., Thompson, J. D., and Bauer, E. D. From Ising Resonant Fluctuations to Static Uniaxial Order in Antiferromagnetic and Weakly Superconducting CeCo(In1-xHgx)5(x=0.01). United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.037003.
Stock, C., Rodriguez-Rivera, J. A., Schmalzl, K., Demmel, F., Singh, D. K., Ronning, F., Thompson, J. D., & Bauer, E. D. From Ising Resonant Fluctuations to Static Uniaxial Order in Antiferromagnetic and Weakly Superconducting CeCo(In1-xHgx)5(x=0.01). United States. doi:10.1103/PhysRevLett.121.037003.
Stock, C., Rodriguez-Rivera, J. A., Schmalzl, K., Demmel, F., Singh, D. K., Ronning, F., Thompson, J. D., and Bauer, E. D. Thu . "From Ising Resonant Fluctuations to Static Uniaxial Order in Antiferromagnetic and Weakly Superconducting CeCo(In1-xHgx)5(x=0.01)". United States. doi:10.1103/PhysRevLett.121.037003. https://www.osti.gov/servlets/purl/1479972.
@article{osti_1479972,
title = {From Ising Resonant Fluctuations to Static Uniaxial Order in Antiferromagnetic and Weakly Superconducting CeCo(In1-xHgx)5(x=0.01)},
author = {Stock, C. and Rodriguez-Rivera, J. A. and Schmalzl, K. and Demmel, F. and Singh, D. K. and Ronning, F. and Thompson, J. D. and Bauer, E. D.},
abstractNote = {CeCo (In0.990Hg0.010)5 is a charge doped variant of the d-wave CoCoIn5 superconductor with coexistent antiferromagnetic and superconducting transitions occurring at TN = 3.4 and Tc = 1.4 K, respectively. We use neutron diffraction and spectroscopy to show that the magnetic resonant fluctuations present in the parent superconducting phase are replaced by collinear c -axis magnetic order with three-dimensional Ising critical fluctuations. No low-energy transverse spin fluctuations are observable in this doping-induced antiferromagnetic phase and the dynamic resonant spectral weight predominately shifts to the elastic channel. Static (τ > 0.2 ns) collinear Ising order is proximate to superconductivity in CeCoIn5 and is stabilized through hole doping with Hg.},
doi = {10.1103/PhysRevLett.121.037003},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 3,
volume = 121,
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 3 works
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Figures / Tables:

FIG. 1 FIG. 1: The magnetic Bragg peak intensity measured as a function of temperature in superconducting and antiferromagnetic (a) CeCo(In0.990Hg0.010)5, (b) CeCo(In0.987Hg0.013)5, and (c) magnetic helically ordered and non-superconducting CeRhIn5 (from Ref. 33). The SC transition Tc and Néel TN temperatures are indicated by vertical lines. (d) Temperature composition T -0more » x phase diagram of CeCo(In1−xHgx)5 determined from specific heat measurements.« less

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