Spin-Electric Coupling in Molecular Magnets

Mircea Trif, Filippo Troiani, Dimitrije Stepanenko, and Daniel Loss
Phys. Rev. Lett. 101, 217201 – Published 20 November 2008

Abstract

We study the triangular antiferromagnet Cu3 in external electric fields, using symmetry group arguments and a Hubbard model approach. We identify a spin-electric coupling caused by an interplay between spin exchange, spin-orbit interaction, and the chirality of the underlying spin texture of the molecular magnet. This coupling allows for the electric control of the spin (qubit) states, e.g., by using an STM tip or a microwave cavity. We propose an experimental test for identifying molecular magnets exhibiting spin-electric effects.

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  • Received 8 May 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.217201

©2008 American Physical Society

Authors & Affiliations

Mircea Trif1, Filippo Troiani2, Dimitrije Stepanenko1, and Daniel Loss1

  • 1Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
  • 2CNR-INFM National Research Center S3 c/o Dipartimento di Fisica via G. Campi 213/A, 41100, Modena, Italy

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Issue

Vol. 101, Iss. 21 — 21 November 2008

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