Experimental Investigation of the Breakdown of the Onsager-Casimir Relations

C. A. Marlow, R. P. Taylor, M. Fairbanks, I. Shorubalko, and H. Linke

Phys. Rev. Lett. 96, 116801 – Published 20 March 2006

Abstract

We use magnetoconductance fluctuation measurements of phase-coherent semiconductor billiards to quantify the contributions to the nonlinear electric conductance that are asymmetric under reversal of magnetic field. We find that the average asymmetric contribution is linear in magnetic field (for magnetic flux much larger than 1 flux quantum) and that its magnitude depends on billiard geometry. In addition, we find an unexpected asymmetry in the power spectrum of the magnetoconductance with respect to reversal of magnetic field and bias voltage.

Received 12 October 2005

DOI:https://doi.org/10.1103/PhysRevLett.96.116801

Authors & Affiliations

C. A. Marlow^1,*, R. P. Taylor¹, M. Fairbanks¹, I. Shorubalko², and H. Linke^1,†

¹Materials Science Institute, Physics Department, University of Oregon, Eugene Oregon 97403-1274, USA
²Institute of Solid State Physics, University of Latvia, Kengarga 8, LV-1063, Riga, Latvia

^*Corresponding author. Email address: cmar@monkeyjump.org
^†Email address: linke@uoregon.edu

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Vol. 96, Iss. 11 — 24 March 2006

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