Cyclotron Resonance in the Layered Perovskite Superconductor Sr2RuO4
S. Hill, J. S. Brooks, Z. Q. Mao, Y. Maeno
DOI 10.1103/PhysRevLett.84.3374 · Physical Review Letters
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Abstract
We have observed cyclotron resonance in the layered perovskite superconductor Sr2RuO4. We obtain cyclotron masses for the α, β, and γ Fermi surfaces of (4.33±0.05)me, (5.81±0.05)me, and (9.71±0.2)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 an interacting Fermi liquid; indeed, semiquantitative agreement is obtained for the electron pockets β and γ.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2RuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.44 | Pressure not reported | midpoint |
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