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Title: Unusual Kondo-hole effect and crystal-field frustration in Nd-doped CeRhIn 5

Abstract

In this research, we investigate single crystals of Ce 1₋xNd xRhIn 5 by means of x-ray-diffraction, microprobe, magnetic susceptibility, heat capacity, and electrical resistivity measurements. Our data reveal that the antiferromagnetic transition of CeRhIn 5, at T$$Ce\atop{N}$$=3.8 K, is linearly suppressed with x Nd. We associate this effect with the presence of a “Kondo hole” created by Nd substitution. The extrapolation of T$$Ce\atop{N}$$ to zero temperature, however, occurs at x c~0.3, which is below the two-dimensional percolation limit found in Ce 1₋xLa xRhIn 5. This result strongly suggests the presence of a crystal-field induced magnetic frustration. Near x Nd~0.2, the Ising antiferromagnetic order from Nd 3+ ions is stabilized and T$$Nd\atop{N}$$ increases up to 11 K in NdRhIn 5. Finally, our results shed light on the effects of magnetic doping in heavy-fermion antiferromagnets and stimulate the study of such systems under applied pressure.

Authors:
 [1];  [2];  [3];  [4];  [2]
  1. Univ. of California, Irvine, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of California, Irvine, CA (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Instituto de Fisica Gleb Wataghin, UNICAMP, Campinas-SP (Brazil)
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:
1337102
Alternate Identifier(s):
OSTI ID: 1260297
Report Number(s):
LA-UR-16-22124
Journal ID: ISSN 2469-9950
Grant/Contract Number:
AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 94; Journal Issue: 4; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Rosa, Priscila Ferrari Silveira, Oostra, Aaron, Thompson, Joe David, Pagliuso, Pascoal G., and Fisk, Zachary. Unusual Kondo-hole effect and crystal-field frustration in Nd-doped CeRhIn5. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.94.045101.
Rosa, Priscila Ferrari Silveira, Oostra, Aaron, Thompson, Joe David, Pagliuso, Pascoal G., & Fisk, Zachary. Unusual Kondo-hole effect and crystal-field frustration in Nd-doped CeRhIn5. United States. doi:10.1103/PhysRevB.94.045101.
Rosa, Priscila Ferrari Silveira, Oostra, Aaron, Thompson, Joe David, Pagliuso, Pascoal G., and Fisk, Zachary. Tue . "Unusual Kondo-hole effect and crystal-field frustration in Nd-doped CeRhIn5". United States. doi:10.1103/PhysRevB.94.045101. https://www.osti.gov/servlets/purl/1337102.
@article{osti_1337102,
title = {Unusual Kondo-hole effect and crystal-field frustration in Nd-doped CeRhIn5},
author = {Rosa, Priscila Ferrari Silveira and Oostra, Aaron and Thompson, Joe David and Pagliuso, Pascoal G. and Fisk, Zachary},
abstractNote = {In this research, we investigate single crystals of Ce1₋xNdxRhIn5 by means of x-ray-diffraction, microprobe, magnetic susceptibility, heat capacity, and electrical resistivity measurements. Our data reveal that the antiferromagnetic transition of CeRhIn5, at T$Ce\atop{N}$=3.8 K, is linearly suppressed with xNd. We associate this effect with the presence of a “Kondo hole” created by Nd substitution. The extrapolation of T$Ce\atop{N}$ to zero temperature, however, occurs at xc~0.3, which is below the two-dimensional percolation limit found in Ce1₋xLaxRhIn5. This result strongly suggests the presence of a crystal-field induced magnetic frustration. Near xNd~0.2, the Ising antiferromagnetic order from Nd3+ ions is stabilized and T$Nd\atop{N}$ increases up to 11 K in NdRhIn5. Finally, our results shed light on the effects of magnetic doping in heavy-fermion antiferromagnets and stimulate the study of such systems under applied pressure.},
doi = {10.1103/PhysRevB.94.045101},
journal = {Physical Review B},
number = 4,
volume = 94,
place = {United States},
year = {Tue Jul 05 00:00:00 EDT 2016},
month = {Tue Jul 05 00:00:00 EDT 2016}
}

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Cited by: 2works
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