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Investigation of the electron-phonon interaction in structures InAs/AlSb in quantization magnetic fields regime

Abstract

Study of transverse magnetoresistance oscillations ρxx(B)  were performed for InAs/AlSb samples with different doping level at temperatures T=(4÷28)К. Based on test of magnetic field dependence amplitude ρxx(B)  the formation dynamic of Landau quantization destruction was established. The components of the electron-electron and the electron-phonon interactions were marked out and the relaxation time τqee, τe−ph) evaluated. On the base of physical model of electron interaction the role of electron-phonon relaxation was revealed as a factor, which stabilize the process  of Landau quantization destruction. Experimental nonlinear dependence τq(T) is explained by electron scattering on piezoelectric and deformation potential of acoustic phonons and channels competition inter-(intra-) subband scattering. Parametric dependence of quantum relaxation time from magnetic field τq ∝ B−0.6 was established.

About the Authors

M. M. Afanasova
Ryazan State university named by S.A. Esenin
Russian Federation

Afanasova Marina, senior staff scientist, doctor of physico-mathematical Sciences 
390013, Ryazan, Dimitrova 3/2, 7
8(4912)983917
8(4912)280586
89109047199



V. A. Stepanov
Ryazan State university named by S.A. Esenin
Russian Federation

Stepanov Vladimir, professor, doctor of physico-mathematical Sciences
Ryazan, Svoboda, 46 
8(4912)280586 
8(4912)280586 
89109047199 



M. A. Korgavchikov
Ryazan State university named by S.A. Esenin
Russian Federation

Korgavchikov Maksim, Engineer
Ryazan, Svoboda, 46
8(4912)280586
8(4912)280586 
89206317278 



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For citations:


Afanasova M.M., Stepanov V.A., Korgavchikov M.A. Investigation of the electron-phonon interaction in structures InAs/AlSb in quantization magnetic fields regime. Nanosystems: Physics, Chemistry, Mathematics. 2012;3(6):36-46. (In Russ.)

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ISSN 2220-8054 (Print)
ISSN 2305-7971 (Online)