MECHANISM OF ABSORPTION OF LIGHT BY FREE CONTINUUM POLARONS

被引:88
作者
KARTHEUSER, E
EVRARD, R
DEVREESE, J
机构
[1] Institut de Physique, Universite de Liege, Sart Tilman, Liege
[2] Institut de Physique, Physique Theorique, Universite de Liege, Sart Tilman, Liege
[3] Faculty of Science, University of Antwerp, Antwerp
[4] Solid State Physics Department, Studiecentrum voor Kernenergie, Mol-donk
关键词
D O I
10.1103/PhysRevLett.22.94
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The absorption of light by free continuum polarons is treated in the framework of the Landau-Pekar approach which for this problem is not restricted to strong coupling but gives at least the qualitative behavior for intermediate coupling (α3to6). The absorption curve consists of a relatively narrow zero-phonon peak and a broad sideband showing a multiphonon structure. The zero- and one-phonon contributions and the lowenergy part of the two-phonon contribution have been evaluated numerically. © 1969 The American Physical Society.
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页码:94 / +
页数:1
相关论文
共 9 条
  • [1] ASCARELLI G, 1968, SEP P INT S COL CENT
  • [2] FREE-CARRIER ABSORPTION IN REDUCED SRTIO3
    BAER, WS
    [J]. PHYSICAL REVIEW, 1966, 144 (02): : 734 - &
  • [3] BRANDT RC, 1968, LOCALIZED EXCITATION
  • [4] DEVREESE J, 1966, PHYS LETT, V11, P278
  • [5] ON EXCITED STATES OF POLARON
    EVRARD, R
    [J]. PHYSICS LETTERS, 1965, 14 (04): : 295 - &
  • [6] MOBILITY OF SLOW ELECTRONS IN A POLAR CRYSTAL
    FEYNMAN, RP
    HELLWARTH, RW
    IDDINGS, CK
    PLATZMAN, PM
    [J]. PHYSICAL REVIEW, 1962, 127 (04): : 1004 - &
  • [7] Landau L D, 1946, ZH EKSP TEOR FIZ, V16, P341
  • [8] OPTICAL ABSORPTION BY SMALL POLARONS IN P- AND N-TYPE LANTHANUM COBALTITE
    MUHLSTROH, R
    REIK, HG
    [J]. PHYSICAL REVIEW, 1967, 162 (03): : 703 - +
  • [9] WALLIS RF, 1968, LOCALIZED EXCITAT ED