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

页码：1488 / 1491

页数：4

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