SPIN-DENSITY CORRELATIONS IN PARAMAGNETIC IRON

被引：20

作者：

GREBENNIKOV, VI

机构：

[1] Institute of Metal Physics, Academy of Sciences, the USSR, 620219 Sverdlovsk

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1990年 / 84卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(90)90163-K

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of spin-density correlations in the paramagnetic state of strong ferromagnetic transition metals are considered on the basis of the effective-Gaussian-fluctuating-field approach (static and dynamic). Fluctuating-exchange-gap theory due to Hertz and Klenin is generalized for thermal excitations with arbitrary wave vectors and frequencies. This generalization permits one to calculate the characteristics of a short-range magnetic order, the intensity of paramagnetic neutron scattering, and the shape of angle-resolved photoemission spectra. The effect of the nonlocality and dynamics of fluctuations on the Curie temperature is also studied. © 1990.

引用

页码：59 / 68

页数：10

共 27 条

[1] OBSERVATIONS OF FERROMAGNETIC CORRELATIONS AT HIGH-TEMPERATURES IN PARAMAGNETIC IRON [J].