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Cyclotron Resonance in the Layered Perovskite Superconductor Sr2RuO4

S. Hill·J. S. Brooks·Z. Q. Mao·Y. Maeno
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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.

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S. Hill, J. S. Brooks, Z. Q. Mao, Y. Maeno. 2000-01-10. Cyclotron Resonance in the Layered Perovskite Superconductor Sr2RuO4. https://doi.org/10.1103/physrevlett.84.3374

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