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

Authors
BUTTGEN N BOHMER R LOIDL A
Citation
N. Buttgen et al., SPIN FLUCTUATIONS IN THE HEAVY-FERMION SYSTEM CECU2GE2 PROBED BY NUCLEAR-MAGNETIC-RESONANCE, Solid state communications, 93(9), 1995, pp. 753-758
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
93
Issue
9
Year of publication
1995
Pages
753 - 758
Database
ISI
SICI code
0038-1098(1995)93:9<753:SFITHS>2.0.ZU;2-C
Abstract
Cu-63 nuclear magnetic resonance (NMR) has been studied in the Kondo l attice CeCu2Ge2 (T almost-equal-to 6K, T(N) = 4.1K), to obtain inform ation on local magnetic behavior. The relaxation measurement of the ex cited Cu-63 (I = 3/2) nuclear spin system is mainly dominated by inter -site magnetic interaction of RKKY type with a vanishing on-site contr ibution of Korringa type relaxation. This behavior is demonstrated by the very similar temperature dependences of the nuclear relaxation rat e 1/T1 and the dynamic structure factor S(Q, omega) from quasielastic neutron scattering.