paper

Cyclotron resonance harmonics in the organic superconductor $Î²^{\prime\prime}$-(BEDT-TTF) $_{2}$ SF $_{5}$ CH $_{2}$ CF $_{2}$ SO $_{3}$ ; observation of a new kind of effective mass renormalization

arXiv:cond-mat/0105505

Abstract

Cyclotron resonance, along with its second and third harmonics, has been observed in the quasi-two-dimensional organic superconductor $Î²^{\prime\prime}$-(BEDT-TTF) $_{2}$ SF $_{5}$ CH $_{2}$ CF $_{2}$ SO $_{3}$ . The harmonic content is richly angle-dependent, and is interpreted in terms of the interlayer warping of the Fermi surface giving rise to the cyclotron resonance. In a departure from Kohn's theorem, but in agreement with recent theoretical predictions, the effective mass deduced from the cyclotron resonance measurements is greater than that determined from magnetic quantum oscillations.

4 pages, 3 figs, PRL submission

Cyclotron resonance harmonics in the organic superconductor $Î²^{\prime\prime}$-(BEDT-TTF)2​SF5​CH2​CF2​SO3​; observation of a new kind of effective mass renormalization

Abstract

Cyclotron resonance harmonics in the organic superconductor $Î²^{\prime\prime}$-(BEDT-TTF) $_{2}$ SF $_{5}$ CH $_{2}$ CF $_{2}$ SO $_{3}$ ; observation of a new kind of effective mass renormalization