NEUTRON-SCATTERING EXPERIMENTS ON YBXCU4 AND ERXCU4 (X=AU,PD,AND AG)

被引：83

作者：

SEVERING, A

MURANI, AP

THOMPSON, JD

FISK, Z

LOONG, CK

机构：

[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

[2] ARGONNE NATL LAB,ARGONNE,IL 60439

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.41.1739

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Temperature-dependent neutron scattering experiments with incident energies in the range 350 meV have been performed on polycrystalline samples of the heavy-electron system YbXCu4, as well as the stable 4f-moment compounds ErXCu4 and the nonmagnetic reference materials LuXCu4, with X=Au, Pd, and Ag. The quasielastic linewidth of the YbXCu4 compounds is determined as a function of temperature. For YbAuCu4 a quantitative crystal-field analysis is applied to the observed inelastic response, while the data for the strongly 4f-delocalized compound YbAgCu4 are discussed in terms of a possible crystal-field interpretation and various theoretical models for heavy-electron systems. © 1990 The American Physical Society.

引用

页码：1739 / 1749

页数：11