MAGNETIC FLUCTUATIONS IN LA1.95BA0.05CUO4

被引：144
作者：
HAYDEN, SM
AEPPLI, G
MOOK, H
RYTZ, D
HUNDLEY, MF
FISK, Z
机构：
[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE
[2] AT&T BELL LABS,MURRAY HILL,NJ 07974
[3] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831
[4] SANDOZ OPTOELECTR,CH-4002 BASEL,SWITZERLAND
[5] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545
来源：
PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.66.821
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Neutron-scattering and resistivity experiments on single crystals of La1.95Ba0.05CuO4 are described. On warming to as high as 250 K, the correlation length does not change, and the temperature dependence of the generalized susceptibility chi(Q, omega) is due solely to the temperature dependence of the local response. We show that the associated relaxation rate in the metallic regime is h-GAMMA approximately-equals 1/2 k(B)T, in accord with the marginal-Fermi-liquid hypothesis, and relate our results to nuclear spin-lattice relaxation data.
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页码：821 / 824
页数：4
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