Kondo properties in (Ce1-xLax)Cu5In

被引：0
|
作者：
Tchokonte, MBT
du Plessis, PD
Strydom, AM
Czopnik, A
Kaczorowski, D
机构：
[1] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa
[2] Rand Afrikaans Univ, Dept Phys, ZA-2000 Johannesburg, South Africa
[3] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
来源：
ACTA PHYSICA POLONICA B | 2003年 / 34卷 / 02期
关键词：
D O I：
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中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
(Ce1-xLax)Cu5In alloys have been investigated by X-ray diffraction, specific heat, electrical transport and magnetic susceptibility measurements. Resistivity rho(T) measurements enabled the extraction of the Kondo temperature T-K(x) for the different alloys. The monotonic decrease of T-K with increase in x has been interpreted in terms of the compressible Kondo model giving \JN(E-F)\ = 0.063 +/- 0.005 (J is the strength of the on-site Kondo interaction and N(E-F) the density of states at the Fermi level). Magnetoresistivity measurements interpreted within the single-ion Bethe ansatz description corroborate the magnitude of T-K found in the rho(T) measurements.
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页码：1309 / 1312
页数：4
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