Inhomogeneous low frequency spin dynamics in La1.65Eu0.2Sr0.15CuO4

被引：120
作者：
Curro, NJ
Hammel, PC
Suh, BJ
Hücker, M
Büchner, B
Ammerahl, U
Revcolevschi, A
机构：
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[2] Catholic Univ Korea, Div Nat Sci, Seoul, South Korea
[3] Univ Cologne, Inst Phys 2, D-5000 Cologne 41, Germany
[4] Univ Paris Sud, Chim Solide Lab, F-91405 Orsay, France
来源：
PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 03期
关键词：
D O I：
10.1103/PhysRevLett.85.642
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report Cu and La nuclear magnetic resonance measurements in the title compound that reveal an inhomogeneous glassy behavior of the spin dynamics. A low temperature peak in the La spin lattice relaxation rate and the "wipeout" of Cu intensity both arise from these slow electronic spin fluctuations that reveal a distribution of activation energies. Inhomogeneous slowing of spin fluctuations appears to be a general feature of doped lanthanum cuprate.
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页码：642 / 645
页数：4
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