Share Email Print
cover

Proceedings Paper

Fermi surface traversal resonance in metals: two theories and an experiment
Author(s): Arzhang Ardavan; J. M. Schrama; S. J. Blundell; J. Singleton; A. Semeno; Philippe Goy; M. Kurmoo; P. Day
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

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.

Paper Details

Date Published: 9 September 1999
PDF: 12 pages
Proc. SPIE 3828, Terahertz Spectroscopy and Applications II, (9 September 1999); doi: 10.1117/12.361059
Show Author Affiliations
Arzhang Ardavan, Univ. of Oxford (United Kingdom)
J. M. Schrama, Univ. of Oxford (United Kingdom)
S. J. Blundell, Univ. of Oxford (United Kingdom)
J. Singleton, Univ. of Oxford (United Kingdom)
A. Semeno, Univ. of Oxford (United Kingdom)
Philippe Goy, Ecole Normale Superieure and Univ. de Paris VI (France)
M. Kurmoo, IPCMS (France)
P. Day, The Royal Institution (United Kingdom)


Published in SPIE Proceedings Vol. 3828:
Terahertz Spectroscopy and Applications II
J. Martyn Chamberlain, Editor(s)

© SPIE. Terms of Use
Back to Top