EFFECTIVE-MASS AND COMBINATION FREQUENCIES OF DE-HAAS-VAN-ALPHEN OSCILLATIONS IN KAPPA-(BEDT-TTF)(2)CU(NCS)(2)

Authors
UJI S CHAPARALA M HILL S SANDHU PS QUALLS J SEGER L BROOKS JS
Citation
S. Uji et al., EFFECTIVE-MASS AND COMBINATION FREQUENCIES OF DE-HAAS-VAN-ALPHEN OSCILLATIONS IN KAPPA-(BEDT-TTF)(2)CU(NCS)(2), Synthetic metals, 85(1-3), 1997, pp. 1573-1574
Citations number
5
Categorie Soggetti
Physics, Condensed Matter","Material Science","Polymer Sciences
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
85
Issue
1-3
Year of publication
1997
Pages
1573 - 1574
Database
ISI
SICI code
0379-6779(1997)85:1-3<1573:EACFOD>2.0.ZU;2-Q
Abstract
De Haas-van Alphen (dHvA) measurements in the two dimensional organic superconductor kappa-(BEDT-TTF)(2)Cu(NCS)(2) have been performed down to .44K in a wide magnetic field range up to 30T. In the range between 20T and 30T, we find dHvA frequencies corresponding to the closed (al pha) and magnetic breakdown (beta) orbits, and many combination freque ncies of alpha and beta as well. The observation of the combination fr equencies beta-alpha and 2 beta-2 alpha is not understood by conventio nal theories because both the torque and magnetic interaction effects are negligibly small. The effective masses and the field dependence of these oscillations are reported.