Orbital effects of in-plane magnetic fields probed by mesoscopic conductance fluctuations

D. M. Zumbühl; J. B. Miller; C. M. Marcus; V. I. Fal’ko; T. Jungwirth; J. S. Harris, Jr

doi:10.1103/PhysRevB.69.121305

Rapid Communication

Orbital effects of in-plane magnetic fields probed by mesoscopic conductance fluctuations

D. M. Zumbühl, J. B. Miller, C. M. Marcus, V. I. Fal’ko, T. Jungwirth, and J. S. Harris, Jr.

Phys. Rev. B 69, 121305(R) – Published 17 March 2004

Abstract

We use the high sensitivity to magnetic flux of mesoscopic conductance fluctuations in large quantum dots to investigate changes in the two-dimensional electron dispersion caused by an in-plane magnetic field. In particular, changes in effective mass and the breaking of momentum reversal symmetry in the electron dispersion are extracted quantitatively from correlations of conductance fluctuations. New theory is presented, and good agreement between theory and experiment is found.

Received 24 December 2003

DOI:https://doi.org/10.1103/PhysRevB.69.121305

Authors & Affiliations

D. M. Zumbühl¹, J. B. Miller^1,2, C. M. Marcus¹, V. I. Fal’ko³, T. Jungwirth^4,5, and J. S. Harris, Jr.⁶

¹Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
²Division of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
³Physics Department, Lancaster University, Lancaster LA1 4YB, United Kingdom
⁴Institute of Physics ASCR, Cukrovarnická 10, 162 53 Praha 6, Czech Republic
⁵Physics Department, University of Texas at Austin, 1 University Station C1600, Austin, Texas 78712-0264, USA
⁶Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA

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Vol. 69, Iss. 12 — 15 March 2004

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