Orbital-Spin Structure and Coupling to Lattice in RTiO₃ with R=La,Pr,Nd and Sm
Mochizuki, Masahito · Imada, Masatoshi
Original · EN
The origin of the G-type antiferromagnetism (AFM(G)) and puzzling properties of RTiO₃ with R=La are studied. We clarify that the crystal field from La caused by the GdFeO₃-type distortion lifts the t₂g degeneracy at Ti 3d orbitals. The lift stabilizes the AFM(G) with spin-exchange constant in agreement with neutron scattering results. The orbital-spin structures for R=Pr, Nd and Sm are also consistent with experiments. We propose that the GdFeO₃-type distortion has a universal mechanism of controlling orbital-spin structure competing with the Jahn-Teller (JT) mechanism.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.