Field-induced suppression of the heavy-fermion state in YbRh2Si2

被引：28
|
作者：
Zwicknagl, Gertrud [1 ]
机构：
[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Math Phys, D-38106 Braunschweig, Germany
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2011年 / 23卷 / 09期
关键词：
QUASI-PARTICLES; METAMAGNETIC TRANSITION; SURFACE; EXCITATIONS;
D O I：
10.1088/0953-8984/23/9/094215
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We present calculations of the magnetic-field-induced changes of the heavy quasiparticles in YbRh2Si2 which are reflected in thermodynamic and transport properties. The quasiparticles are determined by means of the renormalized band method. The progressive de-renormalization of the quasiparticles in the magnetic field is accounted for using field-dependent quasiparticle parameters deduced from numerical renormalization group studies. Consequences for the interpretation of experimental data are discussed.
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页数：7
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