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Title: Intraband and interband optical deformation potentials in femtosecond-laser-excited {alpha}-Te

Abstract

We calculated the intraband and interband optical deformation potentials for semiconducting {alpha}-Te from experimental data of the band gap shrinkage and softening of the A{sub 1}-optical phonon mode in response to femtosecond laser excitation. These potentials were obtained by applying first- and second-order perturbation theory to the Froelich Hamiltonian describing the carrier-phonon interaction. The intraband optical deformation potential is considerably smaller than previously estimated values; there are no previously reported values for the interband optical deformation potential.

Authors:
; ; ;  [1];  [2]
  1. Department of Physics, Arkansas State University, Arkansas 72467-0419 (United States)
  2. (United States)
Publication Date:
OSTI Identifier:
20976711
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 75; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevB.75.085207; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DEFORMATION; ENERGY GAP; EXCITATION; HAMILTONIANS; LASERS; PERTURBATION THEORY; PHONONS; SEMICONDUCTOR MATERIALS; TELLURIUM

Citation Formats

Kudryashov, Sergey I., Kandyla, Maria, Roeser, Christopher A. D., Mazur, Eric, and Department of Physics and Division of Engineering and Applied Sciences, Harvard University, 9 Oxford Street, Cambridge, Massachusetts 02138. Intraband and interband optical deformation potentials in femtosecond-laser-excited {alpha}-Te. United States: N. p., 2007. Web. doi:10.1103/PHYSREVB.75.085207.
Kudryashov, Sergey I., Kandyla, Maria, Roeser, Christopher A. D., Mazur, Eric, & Department of Physics and Division of Engineering and Applied Sciences, Harvard University, 9 Oxford Street, Cambridge, Massachusetts 02138. Intraband and interband optical deformation potentials in femtosecond-laser-excited {alpha}-Te. United States. doi:10.1103/PHYSREVB.75.085207.
Kudryashov, Sergey I., Kandyla, Maria, Roeser, Christopher A. D., Mazur, Eric, and Department of Physics and Division of Engineering and Applied Sciences, Harvard University, 9 Oxford Street, Cambridge, Massachusetts 02138. Thu . "Intraband and interband optical deformation potentials in femtosecond-laser-excited {alpha}-Te". United States. doi:10.1103/PHYSREVB.75.085207.
@article{osti_20976711,
title = {Intraband and interband optical deformation potentials in femtosecond-laser-excited {alpha}-Te},
author = {Kudryashov, Sergey I. and Kandyla, Maria and Roeser, Christopher A. D. and Mazur, Eric and Department of Physics and Division of Engineering and Applied Sciences, Harvard University, 9 Oxford Street, Cambridge, Massachusetts 02138},
abstractNote = {We calculated the intraband and interband optical deformation potentials for semiconducting {alpha}-Te from experimental data of the band gap shrinkage and softening of the A{sub 1}-optical phonon mode in response to femtosecond laser excitation. These potentials were obtained by applying first- and second-order perturbation theory to the Froelich Hamiltonian describing the carrier-phonon interaction. The intraband optical deformation potential is considerably smaller than previously estimated values; there are no previously reported values for the interband optical deformation potential.},
doi = {10.1103/PHYSREVB.75.085207},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 8,
volume = 75,
place = {United States},
year = {Thu Feb 15 00:00:00 EST 2007},
month = {Thu Feb 15 00:00:00 EST 2007}
}