Low-temperature anomalies in magnetic, transport, and thermal properties of single-crystal CeRhSn with valence fluctuations
Use this link to cite this item : https://ir.lib.hiroshima-u.ac.jp/00019297
ID | 19297 |
file | |
creator |
Kim, Moo-Sung
Echizen, Yuji
Kobayashi, Sinichiro
Salamakha, P. S.
Sologub, O. L.
Chen, X.
Tayama, Takashi
Sakakibara, Toshiro
Jung, M. H.
Maple, M. B.
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abstract | Magnetic, transport, thermal, and crystallographic properties are reported for single crystals of CeRhSn crystallizing in the hexagonal ZrNiAl-type structure. We found high anisotropy in both electrical resistivity (ρ a≈5ρc at 70 K) and magnetic susceptibility (X c≈10Xa at 0.4 K), which is atypical for a valence-fluctuating Ce compound. At low temperatures, ρ(T) and X(T) show power-law behaviors; ρa(T)∝(T)1.5 and ρc(T)∝T, and Xa∝T -0.35 and Xc∝T-1.1 down to 0.4 K. These behaviors and the rather large residual resistivity were not affected by long-term annealing. On cooling from 7 K to 0.5 K, the specific heat divided by temperature C/T increased as -ln T and saturated to a rather large value of 0.2 J/mol K2. These experimental results are discussed in relation to the possible atomic disorder.
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journal title |
Physical Review B - Condensed Matter and Materials Physics
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volume | Volume 68
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issue | Issue 5
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start page | 054416-1
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end page | 054416-7
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date of issued | 2003-08-20
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publisher | American Physical Society
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issn | 1098-0121
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ncid | |
publisher doi | |
language |
eng
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nii type |
Journal Article
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HU type |
Journal Articles
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DCMI type | text
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format | application/pdf
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text version | publisher
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rights | Copyright (c) 2003 The American Physical Society.
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relation url | |
department |
Graduate School of Advanced Sciences of Matter
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