EXPERIMENTAL-DETERMINATION OF THE NONCLASSICAL TERM OF THE HALL MAGNETOCONDUCTIVITY IN THE 2DES

Authors
DIAZPANIAGUA C URBINA A VIDAL J PEREDA JA HIDALGO MA BATALLAN F GILPEREZ JM DEAVILA SF
Citation
C. Diazpaniagua et al., EXPERIMENTAL-DETERMINATION OF THE NONCLASSICAL TERM OF THE HALL MAGNETOCONDUCTIVITY IN THE 2DES, Solid state communications, 106(9), 1998, pp. 607-610
Citations number
11
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
106
Issue
9
Year of publication
1998
Pages
607 - 610
Database
ISI
SICI code
0038-1098(1998)106:9<607:EOTNTO>2.0.ZU;2-P
Abstract
We obtained the non-classical term of the Hall magnetoconductivity com bining experimental measurements of both components of the transverse magnetoresistance with a model based on the Streda equation. sigma(xy) appears as the addition of two oscillatory terms. The first one relat ed to sigma(xx), gives the contribution of the 2D bulk electrons. The other one obtained by difference, is in agreement with the non-classic al term of the Streda equation calculated for a DOS taking into accoun t the parameters deduced from the Shubnikov-de Haas oscillations. This term has been attributed to edge states and impurities. (C) 1998 Else vier Science Ltd. All rights reserved.