Energy Gaps and Kohn Anomalies in Elemental Superconductors (2008)
Aynajian, P., Keller, T., Boeri, L., Keimer, B.
The momentum and temperature dependence of the lifetimes of acoustic phonons in the elemental superconductors Pb and Nb was determined by resonant spin-echo spectroscopy with neutrons. In both...
Keller, T., Aynajian, P., Habicht, K., Boeri, L., Bose, S. K., Keimer, B.
Neutron resonance spin-echo spectroscopy was used to monitor the temperature evolution of the linewidths of transverse acoustic phonons in lead across the superconducting transition temperature,...