TY - JOUR
T1 - Many-body effects in a nonequilibrium electron-lattice system
T2 - Coupling of quasiparticle excitations and low phonons
AU - Jain, J. K.
AU - Jalabert, R.
AU - Das Sarma, S.
PY - 1988
Y1 - 1988
N2 - The coupling of quasiparticle excitations in an electron gas to the LO phonons gives rise to novel phonon modes with energies below qvF. We propose that these low-energy "phonon" modes, in addition to the usual plasmon-phonon coupled modes, are responsible for a large (by orders of magnitude) enhancement of the hot-electron energy-loss rate to the lattice at low electron temperatures, as observed in several recent experiments. Experimental conditions are outlined for an unambiguous observation of this predicted many-body effect.
AB - The coupling of quasiparticle excitations in an electron gas to the LO phonons gives rise to novel phonon modes with energies below qvF. We propose that these low-energy "phonon" modes, in addition to the usual plasmon-phonon coupled modes, are responsible for a large (by orders of magnitude) enhancement of the hot-electron energy-loss rate to the lattice at low electron temperatures, as observed in several recent experiments. Experimental conditions are outlined for an unambiguous observation of this predicted many-body effect.
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U2 - 10.1103/PhysRevLett.60.353
DO - 10.1103/PhysRevLett.60.353
M3 - Article
AN - SCOPUS:4243884690
SN - 0031-9007
VL - 60
SP - 353
EP - 356
JO - Physical review letters
JF - Physical review letters
IS - 4
ER -