Nonbolometric bottleneck in electron-phonon relaxation in ultrathin WSi films
Nonbolometric bottleneck in electron-phonon relaxation in ultrathin WSi films
We developed the model of the internal phonon bottleneck to describe the energy exchange between the acoustically soft ultrathin metal film and acoustically rigid substrate. Discriminating phonons in the film into two groups, escaping and nonescaping, we show that electrons and nonescaping phonons may form a unified subsystem, which is …