Orbital Ordering in ferromagnetic Lu2V2O7
Strongly Correlated Electrons
2009-11-11 v1
Abstract
We have observed the orbital ordering in the ferromagnetic Mott-insulator Lu2V2O7 by the polarized neutron diffraction technique. The orbital ordering pattern determined from the observed magnetic form factors can be explained in terms of a linear combination of wave functions |yz>, |zx> and |xy>; |0> = (1/3)^(1/2) |xy> + (1/3)^(1/2)|yz> + (1/3)^(1/2) |zx> which is proportional to |(x + y + z)^2 - r^2>; where each orbital is extended toward the center-of-mass of the V tetrahedron. We discuss the stability of the ferromagnetic Lu2V2O7, using a Hubbard Hamiltonian with these three orbitals.
Keywords
Cite
@article{arxiv.cond-mat/0502020,
title = {Orbital Ordering in ferromagnetic Lu2V2O7},
author = {H. Ichikawa and L. Kano and M. Saitoh and S. Miyahara and N. Furukawa and J. Akimitsu and T. Yokoo and T. Matsumura and M. Takeda and K. Hirota},
journal= {arXiv preprint arXiv:cond-mat/0502020},
year = {2009}
}
Comments
17pages. to be published in J. Phys. Soc. Jpn. 74 (2005)