2 papers
cond-mat.str-el2003
Unusual Symmetries in the Kugel-Khomskii Hamiltonian
A. B. Harris, Taner Yildirim, Amnon Aharony +2
The Kugel-Khomskii Hamiltonian for cubic titanates describes spin and orbital superexchange interactions between ions having three-fold degenerate orbitals. Since or…
cond-mat2002
Rotational and Vibrational Dynamics of Interstitial Molecular Hydrogen
T. Yildirim, A. B. Harris
The calculation of the hindered roton-phonon energy levels of a hydrogen molecule in a confining potential with different symmetries is systematized for the case when the rotationa…