DYNAMIC SPIN PROPERTIES OF LA1.98SR0.02CUO4

被引：15

作者：

MATSUDA, M

BIRGENEAU, RJ

ENDOH, Y

HIDAKA, Y

KASTNER, MA

NAKAJIMA, K

SHIRANE, G

THURSTON, TR

YAMADA, K

机构：

[1] MIT, DEPT PHYS, CAMBRIDGE, MA 02139 USA

[2] BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY 11973 USA

[3] NTT CORP, NTT INTERDISCIPLINARY RES LABS, TOKAI, IBARAKI 31911, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1993年 / 62卷 / 05期

关键词：

D O I：

10.1143/JPSJ.62.1702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Neutron scattering experiments have been performed to study the dynamic spin properties of La1.98Sr0.02CuO4, a crystal with just enough Sr to destroy three-dimensional long range magnetic order and induce spin-glass behavior at low temperatures. The q-integrated susceptibility intergral d2q2D Im chi2D(q2D, omega) follows the scaling function of omega / T suggested by Keimer et al. Below 3 meV, however, clear deviation from the scaling function is observed at low temperatures. This probably originates from a gap in the spin-wave-like excitations due to the out-of-plane anisotropy.

引用

页码：1702 / 1709

页数：8