Electron Spin in Quantum Hall Effect in AlxGa1-xas: D. C. Tsui's Data

Abstract:

Article Preview

The Hall resistivity in the layers of AlxGa1-xAs/Al0.32Ga0.68As is found to show plateaus at certain fractions which depend on the effective charge. The Hall resistivity formula ρxy=h/e2 has been modified to ρxy=h/[(1/2) ge2] so that the effective charge of the electron becomes, e*=(1/2) ge. The plateaus occur at the effective charge determined by g = (2j+1)/(2l+1). Some of the plateaus are explained to arise from the g values while some others require the use of Landau levels. The flux quantization is modified to include the effect of spin. When the samples are doped with aluminium, the clusters of Al atoms occur in the GaAs resulting into electron clusters in which the spin is NS with S=1/2 and N=101. The electron clusters form a temperature dependent plateau in the Hall resistivity.

Info:

Periodical:

Edited by:

Wu Fan

Pages:

3097-3102

DOI:

10.4028/www.scientific.net/AMM.110-116.3097

Citation:

K. N. Shrivastava "Electron Spin in Quantum Hall Effect in AlxGa1-xas: D. C. Tsui's Data", Applied Mechanics and Materials, Vols. 110-116, pp. 3097-3102, 2012

Online since:

October 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.