Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of α-MnSe

D. M. Djokic; Z. V. Popovic; F. R. Vukajlovic

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Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of α-MnSe

机译：反铁磁自旋有序对α-MnSe远红外有源光子模态的影响

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The effects of spin-phonon interaction and magnetic anisotropy on the temperature dependence of the infrared optical phonon modes in the antiferromagnetic α-MnSe are investigated by use of Green's function formalism within 1/z perturbation framework. The renormalization effects are calculated explicitly as a function of temperature, phonon-phonon, and spin-phonon interaction constants. Temperature dependence of the renormalized LO phonon frequencies of the F_(lu) infrared active and combinational phonon modes are calculated and compared with experimental data. We have shown that the inclusion of anisotropy is necessary in order to get a good quantitative agreement with the experiment.

机译：通过在1 / z扰动框架内使用格林函数形式，研究了自旋声子相互作用和磁各向异性对反铁磁α-MnSe中红外光学声子模式的温度依赖性的影响。根据温度，声子-声子和自旋-声子相互作用常数明确计算重归一化效应。计算了F_（lu）红外声子和组合声子模式的重新归一化的LO声子频率的温度依赖性，并将其与实验数据进行了比较。我们已经表明，为了获得与实验良好的定量一致性，必须包含各向异性。

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《Physical review. B, Condensed Matter And Materials Physics》 |2008年第1期|p.014305.1-014305.6|共6页
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D. M. Djokic; Z. V. Popovic; F. R. Vukajlovic;
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7. Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes ofα−MnSe [O] . D. M. Djokić, Z. V. Popović, F. R. Vukajlović 2008

机译：反铁磁旋转排序对α-MNSE远红外有源光学声音模式的影响

Influence of antiferromagnetic spin ordering on the far-infrared active optical phonon modes of α-MnSe

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