terminated phonon laser crystal

phonon-phonon collision

crystal crystal class

ae[o]lotropic crystal; crystal anisotropic; anisotropic crystal

crystal-controlled oscillator(=crystal oscillator)

cubic crystal and 3m crystal

mix-crystal(mixed crystal)

single crystal nickel crystal superalloy

acoustic phonon

acoustic phonon scattering

center of mass mode phonon

coherent acoustic phonon

coherent phonon

coupled plamon-LO-phonon mode

coupling of ultrasonic field with phonon

double phonon state

electron phonon coup

electron phonon interaction

electron-interface phonon interaction