4f-electron localization in CexLa1-xMIn5 with M = Co, Rh, or Ir -: art. no. 186405

被引：48

作者：

Harrison, N

Alver, U

Goodrich, RG

Vekhter, I

Sarrao, JL

Pagliuso, PG

Moreno, NO

Balicas, L

Fisk, Z

Hall, D

Macaluso, RT

Chan, JY

机构：

[1] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA

[2] Kahramanmaras Sutcu Imam Univ, Dept Phys, TR-46100 K Maras, Turkey

[3] Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA

[4] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[5] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.186405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

de Haas-van Alphen measurements on CexLa1-xMIn5 yield contrasting types of behavior that depend on whether M = Co and Ir or M = Rh. A stronger x-dependent scattering in the case of M = Co and Ir is suggestive of a stronger relative coupling, J/W, of the conduction electrons to the 4f electrons, which would then account for the development of a heavy composite Fermi-liquid state as x --> 1. The failure of a composite Fermi-liquid state to form for any x in the case of M = Rh is shown to be inconsistent with theoretical models that propose antiferromagnetism to result from spin-density-wave formation.

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页码：186405 / 1

页数：4

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