R. K. Kremer

Coexistence of ferromagnetism and superconductivity in the hybrid ruthenate-cuprate compound RuSr 2 GdCu 2 O 8 studied by muon spin rotation and dc magnetization

We have investigated the magnetic and the superconducting properties of the hybrid ruthenate-cuprate compound

Specific heat of MgB2 in a one- and a two-band model from first-principles calculations

{\mathrm{RuSr}}_{2}{\mathrm{GdCu}}_{2}{\mathrm{O}}_{8}

Cuprate/manganite superlattices. A model system for a bulk ferromagnetic superconductor

by means of zero-field muon-spin rotation (ZF-\ensuremath{\mu}SR) and dc magnetization measurements. The dc-magnetization data established that this material exhibits ferromagnetic order of the Ru moments [\ensuremath{\mu}(Ru)\ensuremath{\approx}1

Radical anion salts of N,N′-dicyanoquinonediimine (DCNQI): Conductivity and magnetic properties

{\ensuremath{\mu}}_{B}]

Percolative phase separation in La2CuO4+δ and La2−xSrxCuO4

below

MgB2 under pressure : phonon calculations, Raman spectroscopy, and optical reflectance

{T}_{C}=133

Phonon characterization of Bi2 (Sr1-xCax)2 CuO6+δ by infrared and Raman spectroscopy

K and becomes superconducting at a much lower temperature

Relation between structural instabilities in EuTiO3and SrTiO3

{T}_{c}=16

Specific heat of the Ca-intercalated graphite superconductor CaC6.

K. The ZF-\ensuremath{\mu}SR experiments indicate that the ferromagnetic phase is homogeneous on a microscopic scale and accounts for most of the sample volume. They also suggest that the magnetic order is not significantly modified at the onset of superconductivity.

Vanadium oxides V2O5 and NaV2O5 under high pressures: Structural, vibrational, and electronic properties

The heat capacity anomaly at the transition to superconductivity of the layered superconductor MgB2 is compared to first-principles calculations with the Coulomb repulsion, µ*, as the only parameter which is fixed to give the measured Tc. We solve the Eliashberg equations for both an isotropic one-band model and a two-band model with different superconducting gaps on the π-band and σ-band Fermi surfaces. The agreement with experiments is considerably better for the two-band model than for the one-band model.