Journal
PHYSICAL REVIEW B
Volume 68, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.68.100406
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The global phase diagram for the spin and orbital ordering has been investigated for perovskite-type RVO3 (R being a rare-earth ion or Y) by measurements of specific heat, magnetization, and Raman-scattering spectra. RVO3 (R=Lu-Pr), in which the large tilting of VO6 tends to stabilize the collective Jahn-Teller distortion, shows a structural phase transition concomitantly with the G-type orbital ordering (OO) at a temperature far above the C-type magnetic transition temperature. By contrast the C-type spin correlation appears to develop primarily and then induce the G-type OO in CeVO3 and LaVO3 with smaller lattice distortion.
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