9 September 1999 Fermi surface traversal resonance in metals: two theories and an experiment
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Proceedings Volume 3828, Terahertz Spectroscopy and Applications II; (1999) https://doi.org/10.1117/12.361059
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany
Fermi-surface traversal resonance (FTR) is caused by the periodic motion of carriers in a magnetic field across open sections of Fermi surface (FS). Owing to the warping of the FS, the real space velocities of the carries oscillate, generating resonances in the high frequency conductivity which may be described by a semiclassical model. A rectangular resonance cavity, oscillating at 70 GHz, which can rotate in the external magnetic field, has been used to confirm the existence of the effect in the organic metal (alpha) -(BEDT-TTF)2KHg(SCN)4. The data contain a great deal of information about the FS, including the direction and anharmonicity of warping components. A quantum mechanical model is presented which predicts all of the features of FTR appearing in the semiclassical model. This confirms that FTR is a fundamental property of low- dimensional systems, existing under a very wide range of conditions.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Arzhang Ardavan, J. M. Schrama, S. J. Blundell, J. Singleton, A. Semeno, Philippe Goy, M. Kurmoo, P. Day, "Fermi surface traversal resonance in metals: two theories and an experiment", Proc. SPIE 3828, Terahertz Spectroscopy and Applications II, (9 September 1999); doi: 10.1117/12.361059; https://doi.org/10.1117/12.361059

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