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

Sakai, H.; Hattori, T.; Tokunaga, Y.; Kambe, S.; Ghimire, N. J.; Ronning, F.; Bauer, E. D.; Thompson, J. D.

doi:10.1088/1742-6596/868/1/012012

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

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Abstract

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.

Authors:

Sakai, H. ^[1]; Hattori, T. ^[1]; Tokunaga, Y. ^[1]; Kambe, S. ^[1]; Ghimire, N. J. ^[2]; Ronning, F. ^[3]; Bauer, E. D. ^[3]; Thompson, J. D. ^[3]

Japan Atomic Energy Agency (JAEA), Tokai (Japan). Advanced Science Research Center
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: 2017-06-01

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:: 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.

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                    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.  https://doi.org/10.1088/1742-6596/868/1/012012

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                    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.  https://doi.org/10.1088/1742-6596/868/1/012012.  https://www.osti.gov/servlets/purl/1375889.

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@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         = {2017},

  month        = {6}

}

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

Abstract

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