Digitale Medien
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
72 (1998), S. 2439-2441
ISSN:
1077-3118
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
We have measured energy relaxation and longitudinal-optical (LO) phonon emission times in modulation-doped InAs quantum wells driven by high dc fields, and by intense ac fields at frequencies from 0.49 to 0.66 terahertz. We find that for electron temperatures between 50 and 200 K, LO phonon emission dominates energy relaxation. We determine a large net LO phonon emission time, indicating a strong LO phonon bottleneck both in high dc and in intense terahertz fields. © 1998 American Institute of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.121377
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