Physical Review Letters
Print Issue of 12 August 2002

Phys. Rev. Lett. 89, 076602 (2002)

New Spin-Orbit-Induced Universality Class in the Integer Quantum Hall Regime

Yshai Avishai and Yigal Meir
Department of Physics and Ilse Katz Center for Meso- and Nanoscale Science and Technology, Ben Gurion University, Beer Sheva, Israel

(Received 31 July 2001; published 29 July 2002)

Usingheuristic arguments and numerical simulations it is argued that thecritical exponent nu describing the localization length divergence at the integer quantum-Hall transition is modified in the presence of spin-orbit scattering with short-range correlations. The exponent is very close to nu= 4/3, the percolation correlation length exponent, consistent with the prediction of a semiclassical argument. In addition, a band of weakly localized states is conjectured. ©2002 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v89/e076602
doi:10.1103/PhysRevLett.89.076602
PACS: 72.20.My, 73.40.Kp, 73.50.Jt        Additional Information

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References

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