Manifestation of asymmetry in the spin-phonon coupling line in nonresonant paramagnetic absorption

被引:0
作者
I. S. Donskaya
M. M. Shakirzyanov
机构
[1] Russian Academy of Sciences,Kazan’ Physicotechnical Institute
来源
Physics of the Solid State | 1997年 / 39卷
关键词
Spectroscopy; State Physics; Absorption Peak; Strong Asymmetry; Coupling Line;
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学科分类号
摘要
A theory of nonresonant paramagnetic absorption in concentrated paramagnets in which the spin-phonon coupling (SPC) line is asymmetric relative to the center of the magnetic-resonance line is developed on the basis of a two-temperature Provotorov model. It is shown that the strong asymmetry of the SPC line results in a second absorption peak at low frequencies, together with the peak characteristic for the Debye curve. It is established that this effect is due to the appearance of a second “cross” term, as a result of the asymmetry of the SPC line, in the relaxational evolution of the Zeeman and non-Zeeman low-frequency temperatures.
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页码:453 / 455
页数:2
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