Anisotropic conductivity and weak localization in HgTe quantum wells with a normal energy spectrum / Minkov G. M.,Germanenko A. V.,Rut O. E.,Sherstobitov A. A.,Dvoretski S. A.,Mikhailov N. N. // PHYSICAL REVIEW B. - 2013. - V. 88, l. 4.

ISSN/EISSN:

1098-0121 / нет данных

Type:

Article

Abstract:

The results of experimental study of interference induced magnetoconductivity in narrow quantum well HgTe with a normal energy spectrum are presented. Analysis is performed by taking into account the conductivity anisotropy. It is shown that the fitting parameter tau(phi) corresponding to the phase relaxation time increases in magnitude with the increasing conductivity (sigma) and decreasing temperature following the 1/T law. Such a behavior is analogous to that observed in the usual two-dimensional systems with a simple energy spectrum and corresponds to the inelasticity of electron-electron interaction as the main mechanism of the phase relaxation. However, it drastically differs from that observed in the wide HgTe quantum wells with the inverted spectrum, in which tau(phi), being obtained by the same way, is practically independent of sigma. It is presumed that a different structure of the electron multicomponent wave function for the inverted and normal quantum wells could be the reason for such a discrepancy.

Author keywords:

MOLECULAR-BEAM EPITAXY; INTERFACE STATES; N-TYPE; MODULATION; SEMICONDUCTOR; TRANSITION; TRANSPORT; SYSTEMS; PHASE; BAND

DOI:

10.1103/PhysRevB.88.045323

Web of Science ID:

ISI:000322587900003

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL 30
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	045323
Keywords-Plus	MOLECULAR-BEAM EPITAXY; INTERFACE STATES; N-TYPE; MODULATION; SEMICONDUCTOR; TRANSITION; TRANSPORT; SYSTEMS; PHASE; BAND
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Sherstobitov, Andrey/K-3838-2013 Minkov, Grigory/K-3855-2013
ORCID-Numbers	Sherstobitov, Andrey/0000-0001-9267-4181 Minkov, Grigory/0000-0001-8090-5309
Funding-Acknowledgement	RFBR {[}11-02-12126, 12-02-00098, 13-02-00322]
Funding-Text	We are grateful to I. V. Gornyi for numerous illuminating discussions. This work has been supported in part by the RFBR Grants No. 11-02-12126, No. 12-02-00098, and No. 13-02-00322).
Number-of-Cited-References	33
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	8
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	193UV