Original Publication Date
Applied Physics Letters
DOI of Original Publication
Date of Submission
Decay of nonequilibrium longitudinal optical (LO) phonons is investigated at room temperature in two-dimensional electron gas channels confined in nearly lattice-matched InAlN/AlN/GaN structures. A nonmonotonous dependence of the LO-phonon lifetime on the supplied electric power is reported for the first time and explained in terms of plasmon–LO-phonon resonance tuned by applied bias at a fixed sheet density (8×1012 cm−2). The shortest lifetime of 30±15 fs is found at the power of 20±10 nW/electron.
Matulionis, A., Liberis, J., Matulioniene, I., et al. Plasmon-enhanced heat dissipation in GaN-based two-dimensional channels. Applied Physics Letters, 95, 192102 (2009). Copyright © 2009 AIP Publishing LLC.
Is Part Of
VCU Electrical and Computer Engineering Publications
Originally published at http://dx.doi.org/10.1063/1.3261748