Diffusion and ballistic contributions of the interaction correction to the conductivity of a two-dimensional electron gas / Minkov G. M.,Germanenko A. V.,Rut O. E.,Sherstobitov A. A.,Larionova V. A.,Bakarov A. K.,Zvonkov B. N. // PHYSICAL REVIEW B. - 2006. - V. 74, l. 4.

ISSN/EISSN:

1098-0121 / нет данных

Type:

Article

Abstract:

The results of an experimental study of interaction quantum correction to the conductivity of two-dimensional electron gas in A(3)B(5) semiconductor quantum well heterostructures are presented for a wide range of T tau parameter (T tau similar or equal to 0.03-0.8), where tau is the transport relaxation time. A comprehensive analysis of the magnetic field and temperature dependences of the resistivity and the conductivity tensor components shows that the interaction correction can be divided into the ballistic and diffusion parts. It is shown that the ballistic part renormalizes in the main the electron mobility, whereas the diffusion part contributes to the diagonal and does not contribute to the off-diagonal component of the conductivity tensor. We have experimentally found the values of the Fermi-liquid parameters describing the electron-electron contribution to the transport coefficients, which are found to be in good agreement with the theoretical results.

Author keywords:

METAL-INSULATOR-TRANSITION; COULOMB INTERACTION; WEAK-LOCALIZATION; SYSTEMS; MAGNETORESISTANCE; TEMPERATURES

DOI:

10.1103/PhysRevB.74.045314

Web of Science ID:

ISI:000239426800076

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUL
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	045314
Keywords-Plus	METAL-INSULATOR-TRANSITION; COULOMB INTERACTION; WEAK-LOCALIZATION; SYSTEMS; MAGNETORESISTANCE; TEMPERATURES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Minkov, Grigory/K-3855-2013 Sherstobitov, Andrey/K-3838-2013 Larionova, Viola/B-3171-2015
ORCID-Numbers	Minkov, Grigory/0000-0001-8090-5309 Sherstobitov, Andrey/0000-0001-9267-4181 Larionova, Viola/0000-0002-2132-5176
Number-of-Cited-References	32
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	14
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	069DR