Artículos de revistas
Raman-scattering Study Of Crystal-field Excitations In Pr2cuo4
Registro en:
Physical Review B. , v. 49, n. 6, p. 4391 - 4394, 1994.
1631829
10.1103/PhysRevB.49.4391
2-s2.0-0039820493
Autor
Sanjurjo J.A.
Rettori C.
Oseroff S.
Fisk Z.
Institución
Resumen
Crystal-field transitions within the 3H4 multiplet of Pr3+ in Pr2CuO4 were studied by Raman scattering as a function of temperature. We observed three crystal-field excitations at 156, 540, and 675 cm-1. The peak at 156 cm-1, assigned by other authors to the lowest Eg phonon mode, shows a thermal broadening of the linewidth, which is the signature for acoustical-phonon-relaxation processes between crystal-field levels. Our results are in excellent agreement with recent inelastic neutron scattering experiments in Pr2CuO4. © 1994 The American Physical Society. 49 6 4391 4394