Browsing by Keywords "Lattice constants"
Now showing items 1-9 of 9
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Chiral single-wall gold nanotubes
(American Physical Society, 2004)The formation of freestanding and tip-suspended chiral-wall (n,m) nanotubes, which were composed of helical atomic strands, from gold atoms was investigated using first-principles calculations, where (n,m) notation defines ... -
Electronic and magnetic properties of zinc blende half-metal superlattices
(A I P Publishing LLC, 2004)Zinc blende half-metallic compounds such as CrAs, with large magnetic moments and high Curie temperatures, are promising materials for spintronic applications. We explore layered materials, consisting of alternating ... -
Initial stages of SiGe epitaxy on Si(001) studied by scanning tunneling microscopy
(Elsevier BV, 1995)We have studied the initial stages of strained SiGe alloy growth on the Si(001)-(2 × 1) surface by scanning tunneling microscopy. The Si0.36Ge0.64 alloy was grown on the silicon substrate at various coverages (0.13-3.6 ML) ... -
Lattice dynamics and elastic properties of lanthanum monopnictides
(2008)In this study, first principles calculation results of the second order elastic constants and lattice dynamics of two lanthanum monopnictides, LaN and LaBi, which crystallize in rock-salt structure (B1 phase), are presented. ... -
Novel high-K inverse silver oxide phases of SiO2, GeO2, SnO2, and their alloys
(Elsevier, 2006)The recently reported inverse silver oxide phase of SiO2 possesses a high dielectric constant as well as lattice constant compatibility to Si. We explore the closely related oxides, GeO2, SnO2 with the same inverse silver ... -
Peculiar piezoelectric properties of soft two-dimensional materials
(American Chemical Society, 2016-06)Group II-VI semiconductor honeycomb monolayers have a noncentrosymmetric crystal structure and therefore are expected to be important for nano piezoelectric device applications. This motivated us to perform first-principles ... -
Photonic band gap structures for WDM applications
(IEEE, 2002)A new structure by combining a single cavity and coupled-cavity waveguides (CCWs) for wavelength division multiplexing (WDM) applications was proposed. As such, a structure in which the coupling between the cavity mode and ... -
Tkachenko modes of the square vortex lattice in a two-component Bose-Einstein condensate
(2006)We study Tkachenko modes of the square vortex lattice of a two-component Bose-Einstein condensate (BEC) in the mean-field quantum Hall regime, considering the coupling of these modes with density excitations. We derive the ... -
Transmission and reflection properties of composite metamaterials in free space
(OSA, 2003)We measured transmission and reflection from SRRs, thin wires, and composite metamaterials in free space. X-band measurement exhibits high transmission magnitude for frequencies where both SRR and wire have effective ...