Magnetic breakdown in the high-field phase of the organic conductor alpha-(BEDT-TTF)(2)KHg(SCN)(4)

Authors
Honold, MM Harrison, N Nam, MS Singleton, J Mielke, CH Kurmoo, M Day, P
Citation
Mm. Honold et al., Magnetic breakdown in the high-field phase of the organic conductor alpha-(BEDT-TTF)(2)KHg(SCN)(4), SYNTH METAL, 103(1-3), 1999, pp. 2093-2094
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
103
Issue
1-3
Year of publication
1999
Pages
2093 - 2094
Database
ISI
SICI code
0379-6779(199906)103:1-3<2093:MBITHP>2.0.ZU;2-E
Abstract
Measurements of the magnetic susceptibility in alpha-(BEDT-TTF)(2)KHg(SCN)( 4) in fields of up to 60 T show that the magnetic breakdown beta frequency persists and is not attenuated on passing through the kink transition. A qu antitative analysis of the oscillation amplitude over a wide range of field shows that the energy gap between the quasi-one- and two-dimensional parts of the Fermi surface is much smaller than previously estimated. We discuss the implications of this for the spin-density-wave nesting and the quantum Hall effect.