Non-Conventional Critical Behavior and Q-dependent Electron-Phonon Coupling Induced Phonon Softening in the CDW Superconductor LaPt2Si2

Elisabetta Nocerino, Uwe Stuhr, Irene San Lorenzo +12

This paper reports the first experimental observation of phonons and their softening on single crystalline LaPt${}_2$Si${}_2$ via inelastic neutron scattering. From the temperature dep…