New Kind of Magneto-Optical Resonance Observed in the Organic Metal α(BEDTTTF)2KHg(SCN)4

A. Ardavan, J. M. Schrama, S. J. Blundell, J. Singleton, W. Hayes, M. Kurmoo, P. Day, and P. Goy
Phys. Rev. Lett. 81, 713 – Published 20 July 1998
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Abstract

We experimentally demonstrate a mechanism for a new kind of magnetic resonance, the Fermi-surface traversal resonance (FTR). This is caused by the periodic traversal of carriers across quasi-one-dimensional (Q1D) sections of Fermi surface (FS) in an external magnetic field. Owing to the warping of the Q1D Fermi sheets, the real space velocities of the carriers oscillate as they cross the FS, generating resonances in the high frequency conductivity of the material. The results contain information about the FS, including the direction and harmonic content of the warping components. Using a rotating resonant-cavity system, FTRs have been observed in α(BEDTTTF)2KHg(SCN)4.

  • Received 5 November 1997

DOI:https://doi.org/10.1103/PhysRevLett.81.713

©1998 American Physical Society

Authors & Affiliations

A. Ardavan, J. M. Schrama, S. J. Blundell, J. Singleton, and W. Hayes

  • University of Oxford, Department of Physics, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom

M. Kurmoo and P. Day

  • The Royal Institution, 21 Albemarle Street, London W1X 4BS, United Kingdom

P. Goy

  • AB Millimetre, 52 rue Lhomond, 75005 Paris, France

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Vol. 81, Iss. 3 — 20 July 1998

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