Magnetic Field Induced Relaxation Attenuation of Ultrasound by Jahn–Teller Centers: Application to ZnSe:Cr2+


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The influence of magnetic fields on ultrasonic attenuation caused by relaxation in Jahn–Teller centers is studied using chromium ions as Zn substitute impurities in the ZnSe crystal as an example.
The changes of the position and shape of the relaxation peak with the applied magnetic field induction B were observed in the temperature dependence of the ultrasonic attenuation of the shear waves at the frequency of 29.5 MHz propagating along the [110] axis with the polarization vector parallel to the [1\(\overline{1}\)0] axis. To rationalize the results, a simulation procedure was employed assuming that there are two thermal activation mechanism of relaxation with different relaxation times. One of them emerged with activation energy \(V_0=75\) K that remains unchanged in the magnetic fields, the other occurs with increasing \(V_0\) up to \(V_0=106\) K at \(B=14\) T.

作者简介

Irina Zhevstovskikh

M.N. Micheev Institute of Metal Physics of Ural Branch of the RAS; Ural Federal University Named After the First President of Russia B.N. Yeltsin

编辑信件的主要联系方式.
Email: zhevstovskikh@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620137; Ekaterinburg, 620002

Vladimir Gudkov

Ural Federal University Named After the First President of Russia B.N. Yeltsin

Email: zhevstovskikh@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620002

Maksim Sarychev

Ural Federal University Named After the First President of Russia B.N. Yeltsin

Email: zhevstovskikh@imp.uran.ru
俄罗斯联邦, Ekaterinburg, 620002

Sergei Zherlitsyn

Dresden High Magnetic Field Laboratory, Helmholtz-Zentrum Dresden-Rossendorf

Email: zhevstovskikh@imp.uran.ru
德国, Dresden, 01314

Shadi Yasin

Dresden High Magnetic Field Laboratory, Helmholtz-Zentrum Dresden-Rossendorf

Email: zhevstovskikh@imp.uran.ru
德国, Dresden, 01314

Isaac Bersuker

Institute for Theoretical Chemistry, The University of Texas at Austin

Email: zhevstovskikh@imp.uran.ru
美国, Austin, TX, 78712

Nikita Averkiev

A.F. Ioffe Physical Technical Institute of the RAS

Email: zhevstovskikh@imp.uran.ru
俄罗斯联邦, St. Petersburg, 194021

Kirill Baryshnikov

A.F. Ioffe Physical Technical Institute of the RAS

Email: zhevstovskikh@imp.uran.ru
俄罗斯联邦, St. Petersburg, 194021

Andrey Monakhov

A.F. Ioffe Physical Technical Institute of the RAS

Email: zhevstovskikh@imp.uran.ru
俄罗斯联邦, St. Petersburg, 194021

Yuriy Korostelin

P.N. Lebedev Physical Institute of the RAS

Email: zhevstovskikh@imp.uran.ru
俄罗斯联邦, Moscow, 119991

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