Cyclotron Resonance in the Layered Perovskite Superconductor Sr2RuO4

Abstract

We have measured the cyclotron masses in Sr2RuO4 through the observation of periodic-orbit-resonances - a magnetic resonance technique closely related to cyclotron resonance. We obtain values for the alpha, beta and gamma Fermi surfaces of (4.33+/-0.05)me, (5.81+/-0.03)me and (9.71+/-0.11)me respectively. The appreciable differences between these results and those obtained from de Haas- van Alphen measurements are attributable to strong electron-electron interactions in this system. Our findings appear to be consistent with predictions for a strongly interacting Fermi liquid; indeed, semi-quantitative agreement is obtained for the electron pockets beta and gamma.

arXiv comment4 pages + 3 figures

References in corpus (7)

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• Evolution of the cyclotron mass with doping in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Cyclotron resonance and mass enhancement by electron correlation in KFe${}_2$As${}_2$
• Cyclotron resonance in Kondo insulator
• Cyclotron resonance in the layered perovskite superconductor Sr2RuO4