S.B. Oseroff

TL;DR: Superconductivity at 20 K has been unambiguously observed in the Tl-Sr-Ca-Cu-O system and this observation may provide a new insight into the mechanism of oxide superconductivity.

TL;DR: A strong dependence of the Gd EPR spectrum and the microwave absorption on the magnetic history of the samples has been observed, suggesting the formation of magnetic domains or a glassy state.

TL;DR: The low-temperature ESR spectra of Gd3+ and Er3+ in Pr2CuO4 show symmetry properties appropriate to the crystal tetragonal symmetry, and the absence of any splittings of the ESR lines below the Neel temperature implies that the magnetostatic dipole field at the rare-earth-ion site due to the antiferromagnetically ordered Cu moments is <45 Oe.

TL;DR: In this paper, the existence of lattice distortions at the rare-earth (RE) site was inferred from the spectra of the heavy-fermion system YbBiPt.

TL;DR: Low-temperature electron spin resonance (ESR) measurements in YBiPt, doped with 0.1% Er substituting for Y, show that Er is located at a cubic lattice site and has a ground state and an overall crystal-field splitting of \ensuremath{\sim}85(20) K.