451 citations · 578 across the 7 of their papers we have counts for
7 papers
Non-adiabatic effects in the phonon dispersion of Mg 1--x Al x B 2
Matteo D'Astuto, Rolf Heid, Burkhard Renker +7
Superconducting MgB shows an E zone center phonon, as measured by Raman spectroscopy, that is very broad in energy and temperature dependent. The Raman shift and lifet…
Phonon spectrum and soft-mode behavior of MgCNi_3
R. Heid, B. Renker, H. Schober +3
Temperature dependent inelastic neutron-scattering measurements of the generalized phonon density-of-states for superconducting MgCNi_3, T_c=8 K, give evidence for a soft-mode beha…
High-Resolution Thermal Expansion of MgB2
R. Lortz, C. Meingast, D. Ernst +3
The thermal expansion of polycrystalline MgB2 from 5-300 K is studied using high-resolution capacitance dilatometry. The thermal expansivity exhibits a small jump of -5.8x10-8 K-1…
Lattice dynamics and electron-phonon coupling in transition metal diborides
R. Heid, B. Renker, H. Schober +3
The phonon density-of-states of transition metal diborides TMB2 with TM = Ti, V, Ta, Nb and Y has been measured using the technique of inelastic neutron scattering. The experimenta…
LiBC - A prevented superconductor
B. Renker, H. Schober, P. Adelmann +3
We have investigated the lattice dynamics of LiBC. Experimental Raman and inelastic neutron scattering results are confronted with density functional calculations. The excellent ag…
Excitation spectrum of hydrogen adsorbed to carbon nanotubes
B. Renker, H. Schober, P. Schweiss +2
We have studied the microscopic dynamics of hydrogen adsorbed to bundles of single walled carbon nanotubes using inelastic neutron scattering. Evidence is obtained for much higher…