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Density-operator theory of orbital magnetic susceptibility in periodic insulators
(2011-08)
The theoretical treatment of homogeneous static magnetic fields in periodic systems is
challenging, as the corresponding vector potential breaks the translational invariance of the
Hamiltonian. Based on density operators ...
Phonon dispersion and Gruneisen parameters of zinc dicyanide and cadmium dicyanide from first principles: Origin of negative thermal expansion.
(2007)
Zinc dicyanide, Zn(CN)2, and the isostructural cadmium dicyanide show neg. thermal expansion
over a broad range of temps. By the use of d. functional theory calcns., we det. the phonon
dispersion curves of these materials ...
First-principles study of the nuclear quadrupole resonance parameters and orbital ordering in LaTiO3.
(2009)
The electronic structure of the distorted perovskite LaTiO3 is studied using d.-functional
theory, implemented with a projector-augmented wave formalism together with the local-d. approxn.
plus Hubbard U-parameter (LDA+U) ...