WAVE SHAPE OF DE-HAAS-VAN-ALPHEN OSCILLATIONS AND EFFECTIVE-MASS IN THE 2-DIMENSIONAL ORGANIC CONDUCTOR ALPHA(BEDT-TTF)(2)KHG(SCN)(4)

Authors
UJI S BROOKS JS CHAPARALA M SEGER L SZABO T TOKUMOTO M KINOSHITA N KINOSHITA T TANAKA Y ANZAI H
Citation
S. Uji et al., WAVE SHAPE OF DE-HAAS-VAN-ALPHEN OSCILLATIONS AND EFFECTIVE-MASS IN THE 2-DIMENSIONAL ORGANIC CONDUCTOR ALPHA(BEDT-TTF)(2)KHG(SCN)(4), Solid state communications, 100(12), 1996, pp. 825-830
Citations number
23
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
100
Issue
12
Year of publication
1996
Pages
825 - 830
Database
ISI
SICI code
0038-1098(1996)100:12<825:WSODOA>2.0.ZU;2-G
Abstract
De Haas-van Alphen (dHvA) oscillations in the two dimensional organic conductor alpha-(BEDT-TTF)(2)KHg(SCN)(4) have been measured by a canti lever technique at high magnetic fields up to 30 T. The wave shape of the dHvA oscillations undergoes a drastic change around the transition field B-K(similar to 24 T). The effective mass shifts 1.5 m(0) in the density wave phase (B < B-K) to 1.65 m(0) in the normal metallic phas e (B > B-K). Based on the simulation, we have determined that the prim ary cause of the characteristic field dependence of the wave shape is the change in the effective mass. Copyright (C) 1996 Elsevier Science Ltd