Unusual Kondo-hole effect and crystal-field frustration in Nd-doped
- Univ. of California, Irvine, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of California, Irvine, CA (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Instituto de Fisica Gleb Wataghin, UNICAMP, Campinas-SP (Brazil)
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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1337102
- Alternate ID(s):
- OSTI ID: 1260297
- Report Number(s):
- LA-UR-16-22124
- Journal Information:
- Physical Review B, Vol. 94, Issue 4; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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