Study of cooling of hot carriers and intervalley scattering in In sub 0. 53 Ga sub 0. 47 As by subpicosecond Raman scattering

Journal Article · Mon Apr 16 04:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103133· OSTI ID:7186520

Kim, D S; Yu, P Y ^[1]

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1. Department of Physics, University of California, Berkeley, California (USA) Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, California 94720 (USA)

Subpicosecond laser pulses have been used to excite and probe photoexcited hot-electron plasma in In{sub 0.53} Ga{sub 0.47} As by Raman scattering. Hot-electron temperatures have been measured as a function of the length of subpicosecond pulses. Cooling of the hot electrons is compared with a model calculation in which the cooling mechanism is dominated by intervalley scattering. The {Gamma} to {ital L} intervalley deformation potential in In{sub 0.53} Ga{sub 0.47} As was determined to be around 3.5{times}10{sup 8} eV/cm.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7186520
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:16; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603 -- Materials-- Properties
656001* -- Condensed Matter Physics-- Solid-State Plasma
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ARSENIC COMPOUNDS
ARSENIDES
CARRIER MOBILITY
CHARGE CARRIERS
ELECTRON-HOLE DROPLETS
EXCITONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INDIUM ARSENIDES
INDIUM COMPOUNDS
LAWRENCE BERKELEY LABORATORY
MOBILITY
NATIONAL ORGANIZATIONS
PLASMA
PNICTIDES
QUASI PARTICLES
RAMAN EFFECT
SCATTERING
SOLID-STATE PLASMA
US AEC
US DOE
US ERDA
US ORGANIZATIONS