POLARIZATION DEPENDENCE OF THE DYNAMIC SUSCEPTIBILITY CHI''(OMEGA) IN CHROMIUM

被引：23

作者：

LORENZO, JE ^{[1
]}

STERNLIEB, BJ ^{[1
]}

SHIRANE, G ^{[1
]}

WERNER, SA ^{[1
]}

机构：

[1] UNIV MISSOURI,DEPT PHYS,COLUMBIA,MO 65211

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.72.1762

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Neutron scattering measurements characterizing the polarization, energy, and temperature dependence of the magnetic excitations of the longitudinally polarized spin density wave phase of chromium are presented. Careful consideration of spectrometer resolution effects has resulted in the first quantitative expressions for the cross sections associated with the longitudinally and transversely polarized excitations. These results, together with a simple parametrization of the dynamic susceptibility, chi''(omega) is-proportional-to A(omega)/omega, reveal a simple dependence of these excitations on energy at all temperatures below the spin-flip transition.

引用

页码：1762 / 1765

页数：4

共 9 条

[1] MAGNETIC EXCITATIONS IN THE INCOMMENSURATE PHASES OF CHROMIUM METAL [J].