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  • 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, ρ xx , Hall effect, ρ 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 the literature. Comparison of C with dρ 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.
  • 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, ρ xx , Hall effect, ρ 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 the literature. Comparison of C with dρ 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. (en)
Title
  • Low-temperature properties of single-crystal CrB2./sub
  • Low-temperature properties of single-crystal CrB2./sub (en)
skos:prefLabel
  • Low-temperature properties of single-crystal CrB2./sub
  • Low-temperature properties of single-crystal CrB2./sub (en)
skos:notation
  • RIV/68378271:_____/14:00432258!RIV15-AV0-68378271
http://linked.open...avai/riv/aktivita
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  • I
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  • 26711
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  • RIV/68378271:_____/14:00432258
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  • CrB2; magnetism; transport properties (en)
http://linked.open.../riv/klicoveSlovo
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  • US - Spojené státy americké
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  • [25448DB6509A]
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  • Physical Review. B
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  • 90
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  • Kuneš, Jan
  • Bauer, A.
  • Blum, C.G.F.
  • Pfleiderer, C.
  • Regnat, A.
  • Wurmehl, S.
  • Gottlieb-Schönmeyer, S.
  • Meven, M.
  • Pedersen, B.
http://linked.open...ain/vavai/riv/wos
  • 000341104600004
issn
  • 1098-0121
number of pages
http://bibframe.org/vocab/doi
  • 10.1103/PhysRevB.90.064414
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