Magnetotransport across the field-induced quantum phase transition in CeCu5.8Au0.2

被引：0
|
作者：
Roeger, M.
Uhlarz, M.
von Loehneysen, H.
机构：
[1] Univ Karlsruhe, Inst Phys, D-76128 Karlsruhe, Germany
[2] Forschungszentrum Karlsruhe, Inst Festkorperphys, D-76021 Karlsruhe, Germany
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2007年 / 310卷 / 02期
关键词：
quantum phase transitions; magnetotransport; heavy fermions;
D O I：
10.1016/j.jmmm.2006.10.873
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on the Hall resistivity rho(xy)(T,B) and magnetoresistivity rho(xx)(T, B) for CeCu5.8Au0.2 with magnetic field B applied along the b-axis (hard direction) and current I along the a-axis. CeCu5.8Au0.2 orders antiferromagnetically below T-N = 0.25 K. Using magnetic field as a control parameter, CeCu5.8Au0.2 may continuously be driven through a quantum critical point at a critical magnetic field value B-c approximate to 3.6T. While no change in rho(xy)(T, B = 0) is seen across T-N, a gradual decrease of rho(xy)(T const:; B) is observed around B-c. (c) 2006 Elsevier B.V. All rights reserved.
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收藏
页码：847 / 848
页数：2
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