Magnetic-Field-Tunable Intensity Transfer from Optically Active Phonons to Crystal-Field Excitations in the Reflection Spectra of the PrFe3(BO3)4 Antiferromagnet

被引：0

作者：

Boldyrev, Kirill N. ^{[1
]}

Malkin, Boris Z. ^{[2
]}

Popova, Marina N. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Spect, Moscow 108840, Russia

[2] Kazan Fed Univ, Inst Phys, Kazan 420008, Russia

来源：

CRYSTALS | 2022年 / 12卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

intensities of coupled electron-phonon modes; PrFe3(BO3)(4); theory of intensity transfer; MAGNETOELECTRIC PROPERTIES; EARTH; ION;

D O I：

10.3390/cryst12030392

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We analyze the field-dependent intensities of the coupled electron-phonon modes observed in the low-temperature far-infrared (terahertz) reflection spectra of PrFe3(BO3)(4) and develop a theory based on the Green's function approach. An excellent agreement between the experimental and theoretical data is achieved. The developed theory of the intensity transfer from phonons to quasi-electronic excitations can be applied to the electron-phonon modes in other compounds, in particular, in magnetodielectric materials, where it can be used to analyze the magnetodielectric response.

引用

页数：8

共 39 条

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