Artículos de revistas
Jahn-teller Effect In The Electronic Raman Scattering Of Co2+ In Mgo
Registro en:
Physical Review B. , v. 33, n. 4, p. 2842 - 2844, 1986.
1631829
10.1103/PhysRevB.33.2842
2-s2.0-35949018507
Autor
Peixoto L.T.
Foglio M.E.
Institución
Resumen
We employ a model with only a few phonon frequencies to describe the Jahn-Teller (JT) interaction. If the maximum occupation number for each phonon is small (a maximum of two in this work) the system Hamiltonian can be diagonalized numerically. After an adequate choice of the frequencies and JT coefficients of the model we compare the resulting intensity for electronic Raman scattering of Co2+:MgO with the linewidth calculated in another work [L. T. Peixoto and M. E. Foglio, Phys. Rev. B 32, 2596 (1985) in which Green's functions were truncated and a continuum of phonon frequencies was employed. The present calculation produces additional structure which also appears in the experimental spectrum. © 1986 The American Physical Society. 33 4 2842 2844