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Pis'ma v Zh. Èksper. Teoret. Fiz.:

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Pis'ma v Zh. Èksper. Teoret. Fiz., 2012, Volume 96, Issue 4, Pages 252–256 (Mi jetpl3207)  

This article is cited in 3 scientific papers (total in 3 papers)


Relaxation and resonance ultrasound attenuation by Jahn–Teller centers in a GaAs:Cu crystal

N. S. Averkieva, K. A. Baryshnikova, I. B. Bersukerb, V. V. Gudkovcd, I. V. Zhevstovskikhec, V. Yu. Mayakinc, A. M. Monakhova, M. N. Sarychevc, V. E. Sedova

a Ioffe Physico-Technical Institute, Russian Academy of Sciences
b University of Texas in Austin
c Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
d Russian State Professional Pedagogical University, Ekaterinburg
e Institute of Metal Physics, Ural Division of the Russian Academy of Sciences

Abstract: The interaction of ultrasound with Cu$_Ga$4As in a GaAs:Cu crystal has been experimentally studied. The temperature dependences of the attenuation of all normal ultrasonic modes propagating in the ${<}110{>}$ direction both in doped copper and in nominally pure gallium arsenide crystals have been measured. In the GaAs:Cu crystal, the attenuation peak has been revealed for a transverse wave polarized along the ${<}110{>}$ axis whose elastic shifts correspond to the symmetry of the tetragonal mode of the Jahn–Teller effect. The temperature dependence of the attenuation of this wave indicates that two types of attenuation—relaxation and resonance—occur. The constructed temperature dependence of the relaxation time indicates that tunneling through the potential barrier between the minima of the adiabatic potential energy is the main relaxation mechanism at temperatures below $10$ K. Tunneling splitting estimated from experimental data is in good agreement with the theoretical estimate.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2012, 96:4, 236–239

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Document Type: Article
Received: 04.06.2012

Citation: N. S. Averkiev, K. A. Baryshnikov, I. B. Bersuker, V. V. Gudkov, I. V. Zhevstovskikh, V. Yu. Mayakin, A. M. Monakhov, M. N. Sarychev, V. E. Sedov, “Relaxation and resonance ultrasound attenuation by Jahn–Teller centers in a GaAs:Cu crystal”, Pis'ma v Zh. Èksper. Teoret. Fiz., 96:4 (2012), 252–256; JETP Letters, 96:4 (2012), 236–239

Citation in format AMSBIB
\by N.~S.~Averkiev, K.~A.~Baryshnikov, I.~B.~Bersuker, V.~V.~Gudkov, I.~V.~Zhevstovskikh, V.~Yu.~Mayakin, A.~M.~Monakhov, M.~N.~Sarychev, V.~E.~Sedov
\paper Relaxation and resonance ultrasound attenuation by Jahn--Teller centers in a GaAs:Cu crystal
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2012
\vol 96
\issue 4
\pages 252--256
\jour JETP Letters
\yr 2012
\vol 96
\issue 4
\pages 236--239

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    This publication is cited in the following articles:
    1. Averkiev N.S., Bersuker I.B., Gudkov V.V., Baryshnikov K.A., Zhevstovskikh I.V., Mayakin V.Yu., Monakhov A.M., Sarychev M.N., Sedov V.E., Surikov V.T., “Ultrasonic Investigation of the Jahn-Teller Effect in Gaas Semiconductors Doped By Transition Metals”, J. Appl. Phys., 116:10 (2014), 103708  crossref  adsnasa  isi  elib  scopus
    2. A. A. Gutkin, N. S. Averkiev, “Anisotropic Jahn-Teller Acceptors Formed in GaAs By First-Group Elements With a Filled D Shell”, Semiconductors, 51:10 (2017), 1247–1273  crossref  isi  scopus
    3. N. S. Averkiev, I. B. Bersuker, V. V. Gudkov, I. V. Zhevstovskikh, M. N. Sarychev, S. Zherlitsyn, Sh. Yasin, G. S. Shakurov, V. A. Ulanov, V. T. Surikov, “Acoustic Properties of Crystals With Jahn-Teller Impurities: Elastic Moduli and Relaxation Time. Application to Srf2:Cr2+”, J. Phys. Soc. Jpn., 86:11 (2017), 114604  crossref  isi  scopus
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