Low-temperature properties of single-crystal CrB2./sub

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00432258" target="_blank" >RIV/68378271:_____/14:00432258 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevB.90.064414" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.90.064414</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.90.064414" target="_blank" >10.1103/PhysRevB.90.064414</a>

Result language
angličtina
Original language name
Low-temperature properties of single-crystal CrB2./sub
Original language description
We report the low-temperature properties of 11 B-enriched single-crystal CrB 2 as prepared from high-purity Cr and B powder by a solid-state reaction and optical float zoning. The electrical resistivity, ? xx , Hall effect, ? xy, and specific heat, C, are characteristic of an exchange-enhanced Fermi liquid ground state, which develops a slightly anisotropic spin gap 220 K below T N = 88 K. This observation is corroborated by the absence of a Curie dependence in the magnetization for T 0 reported in theliterature. Comparison of C with d? xx /dT , where we infer lattice contributions from measurements of VB 2 , reveals strong antiferromagnetic spin fluctuations with a characteristic spin fluctuation temperature T sf 257 K in the paramagnetic state, followed by a pronounced second-order mean-field transition at T N , and unusual excitations around T N /2.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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