Dephasing in presence of a magnetic field / Germanenko A. V.,Larionova V. A.,Gornyi I. V.,Minkov G. M. // . - 2007. - V. 6, l. 3-4. - P. 261+.

ISSN/EISSN:

нет данных / нет данных

Type:

Proceedings Paper

Abstract:

Effect of the magnetic field on the rate of phase breaking is studied. It is shown that the magnetic field resulting in the decrease of phase relaxation rate tau(-1)(phi) makes the negative magnetoresistance due to suppression of the electron interference to be smoother in shape and lower in magnitude than that found with constant tau(-1)(phi)-value. Nevertheless our analysis shows that experimental magnetoconductance curves can be well fitted by the Hikami-Larkin-Nagaoka expression.(1) The fitting procedure gives the value of tau/tau(phi), where tau is the quasi-momentum relaxation time, which is close to the value of tau/tau(phi) (B = 0) with an accuracy of 25\% or better when the temperature varies within the range from 0.4 to 10 K. The value of the prefactor alpha found from this procedure lies within the interval 0.9-1.2.

Author keywords:

quantum corrections; weak localization; dephasing MAGNETORESISTANCE

DOI:

нет данных

Web of Science ID:

ISI:000255632300018

Соавторы в МНС:

Другие поля

Поле	Значение
Editor	Suris, R
Booktitle	INTERNATIONAL JOURNAL OF NANOSCIENCE, VOL 6, NOS 3 AND 4
Series	International Journal of Nanoscience Series
Note	13th International Symposium on Nanstructures - Physics and Technology, St Petersburg, RUSSIA, JUN 20-25, 2005
Publisher	WORLD SCIENTIFIC PUBL CO PTE LTD
Address	PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE
Language	English
Keywords-Plus	MAGNETORESISTANCE
Research-Areas	Science \& Technology - Other Topics; Physics
Web-of-Science-Categories	Nanoscience \& Nanotechnology; Physics, Applied
ResearcherID-Numbers	Minkov, Grigory/K-3855-2013 Larionova, Viola/B-3171-2015
ORCID-Numbers	Minkov, Grigory/0000-0001-8090-5309 Larionova, Viola/0000-0002-2132-5176
Funding-Acknowledgement	RFBR {[}02-02-17688, 03-02-16150, 04-02-16626]; CRDF {[}EK-005-X1, Y1-P-05-11]; INTAS {[}1B290]; Program Russian Science School {[}2192.2003.2]
Funding-Text	This work was supported in part by the RFBR (grants 02-02-17688, 03-02-16150, and 04-02-16626), the CRDF (grants EK-005-X1 and Y1-P-05-11), the INTAS (grant 1B290), the Russian Program Physics of Solid State Nanostructures, the SPP Quanten-Hall-Systeme of the DFG, the Program Russian Science School 2192.2003.2.
Number-of-Cited-References	6
Doc-Delivery-Number	BHR25