Author/Authors :
Honold، نويسنده , , M.M. and Harrison، نويسنده , , N. and Nam، نويسنده , , M.-S. and Singleton، نويسنده , , J. and Mielke، نويسنده , , C.H. and Kurmoo، نويسنده , , M. and Day، نويسنده , , P.، نويسنده ,
Abstract :
Measurements of the magnetic susceptibility in α-(BEDT-TTF)2KHg(SCN)4 in fields of up to 60 T show that the magnetic breakdown β frequency persists and is not attenuated on passing through the kink transition. A quantitative 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.
Keywords :
BEDT-TTF salts , de Haas-van Alphen effect , quantum Hall effect , spin-density wave
