Ultrafast spectroscopy on LiOsO3 shows selective intra-band carrier relaxation to a phonon subset, leaving 60% of lattice heat capacity decoupled and consistent with an undetected TO polar mode, supporting the decoupled electron mechanism.
Electron-phonon interactions from first principles
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Evidence for the weakly coupled electron mechanism in an Anderson-Blount polar metal
Ultrafast spectroscopy on LiOsO3 shows selective intra-band carrier relaxation to a phonon subset, leaving 60% of lattice heat capacity decoupled and consistent with an undetected TO polar mode, supporting the decoupled electron mechanism.