Quantum mechanics

Fourier transform ion cyclotron resonance

Context (archaeology)

Magnetic field

Voltage

Biology

Cyclotron resonance

Effective mass (spring–mass system)

Atomic physics

Harmonics

Paleontology

Ion cyclotron resonance

Physics

Fermi surface

Superconductivity

Resonance (particle physics)

Condensed matter physics

Mass spectrometry

Cyclotron

Fermi Gamma-ray Space Telescope

International Journal of Modern Physics B

We report a study of the angle-dependent millimetre-wave magnetoconductivity of the p-wave triplet-paired perovskite superconductor Sr 2 RuO 4 . We find two harmonic series. We assign the first to interlayer cyclotron resonance of the β-Fermi surface and its harmonics, yielding a cyclotron effective mass of [Formula: see text]. We assign the second series, which contains only odd harmonics, to cyclotron resonance of the γ-Fermi surface, yielding a cyclotron effective mass of [Formula: see text]. In addition, we find a very strong absorption mode in the presence of a magnetic field component parallel to the quasi-two-dimensional (Q2D) planes of the sample. Its dependence on the orientation of the magnetic field cannot be described in the context of conventional Q2D cyclotron resonance, and the origin of this mode is not yet clear.

THE MILLIMETRE-WAVE MAGNETO-OPTICAL RESPONSE OF Sr2RuO4