SPIN FLUCTUATIONS IN THE HEAVY-FERMION SYSTEM CECU2GE2 PROBED BY NUCLEAR-MAGNETIC-RESONANCE

被引：4

作者：

BUTTGEN, N

BOHMER, R

LOIDL, A

机构：

[1] Institut für Festkörperphysik, Technische Hochschule Darmstadt

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 93卷 / 09期

关键词：

METALS; HEAVY FERMIONS; NUCLEAR RESONANCES;

D O I：

10.1016/0038-1098(94)00862-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Cu-63 nuclear magnetic resonance (NMR) has been studied in the Kondo lattice CeCu2Ge2 (T* almost-equal-to 6K, T(N) = 4.1K), to obtain information on local magnetic behavior. The relaxation measurement of the excited Cu-63 (I = 3/2) nuclear spin system is mainly dominated by inter-site magnetic interaction of RKKY type with a vanishing on-site contribution of Korringa type relaxation. This behavior is demonstrated by the very similar temperature dependences of the nuclear relaxation rate 1/T1 and the dynamic structure factor S(Q, omega) from quasielastic neutron scattering.

引用

页码：753 / 758

页数：6

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