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.

引用

页码：847 / 848

页数：2