Publications

We have grown nonpolar GaN/AlN multiple quantum wells by plasma-assisted molecular-beam epitaxy on R-plane sapphire substrates.

ZnO nanotips are grown on epitaxial GaN/c-sapphire templates by metalorganic chemical vapor deposition.

Nonlinear optical glasses are attractive materials for fast all-optical switching devices because they combine nonlinear index coefficients substantially larger than SiO sub 2 with low absorption c

The mixed YBa sub 2 Cu sub (3-x) M sub x O sub (7-y) (M=Ni, Zn, Fe, Co and Al) phases have been characterized for their structural, magnetic and superconducting properties.

Superconducting Y sub 1 Ba sub 2 Cu sub 3 O sub (1-x) films were produced by metal molecular beam epitaxy with one e-beam and two thermal cells and a molecular oxygen gas source.

The structural thermal dependence in K sub 2 TeBr sub 6 resulting from the condensation of normal modes at the monoclinic-to- tetragonal and tetragonal-to-cubic phase transitions has been investiga

The a-plane MgxZn1-xO (0 = x = 0.25) films were grown on r-plane (0112) sapphire substrates using metal-organic chemical vapor deposition.

Structures of a set of pyrochlore related structures KNbWO (6), K(1.88)NbWO(6), and KNbWO(6).0.69D(2)0 have been determined by neutron powder profile analysis.

The valence-electron contribution to the total energy of simple- cubic and rhombohedral arsenic has been calculated using local- density- functional theory and a scalar-relativistic version of the

(GaN/GaAlN/GaN)//Al2O3(00, 1) HEMT heterostructures have been studied by X-ray scattering techniques, transmission electron microscopy and atomic force microscopy.