51 citations · 324 across the 13 of their papers we have counts for
13 papers
Lattice dynamics and electronic excitations in a large family of lacunar spinels with a breathing pyrochlore lattice structure
S. Reschke, F. Meggle, F. Mayr +6
Reproducing the electronic structure of AMX lacunar spinels with a breathing pyrochlore lattice is a great theoretical challenge due to the interplay of various factors. Th…
Optical conductivity in multiferroic GaVS and GeVS: Phonons and electronic transitions
S. Reschke, F. Mayr, Zhe Wang +7
We report on optical spectroscopy on the lacunar spinels GaVS and GeVS in the spectral range from 100 to 23000 cm and for temperatures from 5 to 300 K. These…
Exciton-magnon transitions in the frustrated chromium antiferromagnets CuCrO2, alpha-CaCr2O4, CdCr2O4, and ZnCr2O4
M. Schmidt, Zhe Wang, Ch. Kant +7
We report on optical transmission spectroscopy of the Cr-based frustrated triangular antiferromagnets CuCrO2 and alpha-CaCr2O4, and the spinels CdCr2O4 and ZnCr2O4 in the near-infr…
Universal exchange-driven phonon splitting in antiferromagnets
Ch. Kant, M. Schmidt, Z. Wang +4
We report a linear dependence of the phonon splitting Δωon the non-dominant exchange coupling constant J_{nd} in the antiferromagnetic transition-metal monoxides MnO, FeO, CoO, NiO…
High-Frequency Electromagnon in GdMnO3
A. Shuvaev, F. Mayr, A. Loidl +2
We present the results of transmittance experiments on GdMnO3 multiferroic manganite in the far infrared frequency range. The spectra allow to obtain the positions and the intensit…
Evolution of Quantum Criticality in CeNi_{9-x}Cu_xGe_4
L. Peyker, C. Gold, E. -W. Scheidt +7
Crystal structure, specific heat, thermal expansion, magnetic susceptibility and electrical resistivity studies of the heavy fermion system CeNi_{9-x}Cu_xGe_4 (0 <= x <= 1) reveal…