PHONON SELF-ENERGIES AND 4F-ELECTRON-PHONON INTERACTION IN CECLA1-CF3

被引：29
作者：
AHRENS, K
SCHAACK, G
机构：
[1] Physikalisches Institut der Universität
来源：
PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 22期
关键词：
D O I：
10.1103/PhysRevLett.42.1488
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In CecLa1-cF3 we have observed frequency shifts of optical phonons depending on the concentration c of the 4f ions and on temperature. It is shown that these effects are due to a resonant 4f-electron-phonon interaction via photon-induced virtual quadrupole transitions to excited crystal-field states of Ce3+. These shifts are related to the magnetic phonon splitting of doubly degenerate phonons. Both effects can be quantitatively interpreted with the same coupling constant. © 1979 The American Physical Society.
引用
收藏
页码：1488 / 1491
页数：4
相关论文
共 19 条
  • [1] AHRENS K, 1978, INDIAN J PURE AP PHY, V16, P311
  • [2] AHRENS K, 1978, 1977 P INT C LATT DY, P257
  • [3] AHRENS K, UNPUBLISHED
  • [4] LATTICE VIBRATIONS AND STRUCTURE OF RARE-EARTH FLUORIDES
    BAUMAN, RP
    PORTO, SPS
    [J]. PHYSICAL REVIEW, 1967, 161 (03): : 842 - &
  • [5] EFFECTS OF INTERBAND EXCITATIONS ON RAMAN PHONONS IN HEAVILY DOPED N-SI
    CHANDRASEKHAR, M
    RENUCCI, JB
    CARDONA, M
    [J]. PHYSICAL REVIEW B, 1978, 17 (04): : 1623 - 1633
  • [6] LATTICE-DYNAMICS OF AGBR
    DORNER, B
    VONDEROSTEN, W
    BUHRER, W
    [J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1976, 9 (05): : 723 - 732
  • [7] DULTZ W, COMMUNICATION
  • [8] COVALENCY AND DEFORMABILITY OF AG+-IONS IN LATTICE-DYNAMICS OF SILVER-HALIDES
    FISCHER, K
    BILZ, H
    HABERKOR.R
    WEBER, W
    [J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1972, 54 (01): : 285 - 294
  • [9] HANKE W, 1976, PHYS REV LETT, V37, P1560, DOI 10.1103/PhysRevLett.37.1560
  • [10] REHWALD W, COMMUNICATION
12