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cond-mat.str-el2005
Orbital order, anisotropic spin couplings, and the spin-wave spectrum of the ferromagnetic Mott insulator YTiO3
Robert Schmitz, Ora Entin-Wohlman, Amnon Aharony +1
Using a point-charge calculation of the electrostatic crystal field, we determine the non-degenerate orbital ground state of the ferromagnetic Mott insulator YTiO3, which is found…
cond-mat.str-el2005
Ferromagnetism in a hard-core boson model
A. Fledderjohann, A. Langari, E. Mueller-Hartmann +1
The problem of ferromagnetism -- associated with a ground state with maximal total spin -- is discussed in the framework of a hard-core model, which forbids the occupancy at each s…