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Title: Anisotropy of Spin Fluctuations in a Tetragonal Heavy Fermion Antiferromagnet CeRhAl 4 Si 2

Abstract

An antiferromagnetic (AFM) Kondo lattice compound CeRhAl 4Si 2, which exhibits successive AFM transitions at T N1=14 K and T N2=9 K in zero external field, has been microscopically investigated by means of 27Al nuclear magnetic resonance (NMR) technique. In the high temperature range, magnetic excitations of 4f electrons can be well explained by isotropic localized spin fluctuations. Below ~50 K, it begins to show a characteristic anisotropy of spin fluctuations, which suggests a competition between spin fluctuations and nesting instability in this system.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3];  [3];  [3]
  1. Japan Atomic Energy Agency (JAEA), Tokai (Japan). Advanced Science Research Center
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  3. 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 Office of Science (SC). Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1375889
Report Number(s):
LA-UR-17-26563
Journal ID: ISSN 1742-6588
Grant/Contract Number:
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series
Additional Journal Information:
Journal Volume: 868; Journal ID: ISSN 1742-6588
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Material Science; NMR, heavy fermion, anisotropy, CeRhAl4Si2

Citation Formats

Sakai, H., Hattori, T., Tokunaga, Y., Kambe, S., Ghimire, N. J., Ronning, F., Bauer, E. D., and Thompson, J. D. Anisotropy of Spin Fluctuations in a Tetragonal Heavy Fermion Antiferromagnet CeRhAl 4 Si 2. United States: N. p., 2017. Web. doi:10.1088/1742-6596/868/1/012012.
Sakai, H., Hattori, T., Tokunaga, Y., Kambe, S., Ghimire, N. J., Ronning, F., Bauer, E. D., & Thompson, J. D. Anisotropy of Spin Fluctuations in a Tetragonal Heavy Fermion Antiferromagnet CeRhAl 4 Si 2. United States. doi:10.1088/1742-6596/868/1/012012.
Sakai, H., Hattori, T., Tokunaga, Y., Kambe, S., Ghimire, N. J., Ronning, F., Bauer, E. D., and Thompson, J. D. Thu . "Anisotropy of Spin Fluctuations in a Tetragonal Heavy Fermion Antiferromagnet CeRhAl 4 Si 2". United States. doi:10.1088/1742-6596/868/1/012012. https://www.osti.gov/servlets/purl/1375889.
@article{osti_1375889,
title = {Anisotropy of Spin Fluctuations in a Tetragonal Heavy Fermion Antiferromagnet CeRhAl 4 Si 2},
author = {Sakai, H. and Hattori, T. and Tokunaga, Y. and Kambe, S. and Ghimire, N. J. and Ronning, F. and Bauer, E. D. and Thompson, J. D.},
abstractNote = {An antiferromagnetic (AFM) Kondo lattice compound CeRhAl4Si2, which exhibits successive AFM transitions at T N1=14 K and T N2=9 K in zero external field, has been microscopically investigated by means of 27Al nuclear magnetic resonance (NMR) technique. In the high temperature range, magnetic excitations of 4f electrons can be well explained by isotropic localized spin fluctuations. Below ~50 K, it begins to show a characteristic anisotropy of spin fluctuations, which suggests a competition between spin fluctuations and nesting instability in this system.},
doi = {10.1088/1742-6596/868/1/012012},
journal = {Journal of Physics. Conference Series},
number = ,
volume = 868,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}
}

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