Results 41 to 50 of about 325,988 (297)

Superconductivity in Pseudo-Binary Silicide SrNixSi2-x with AlB2-Type Structure

, 2012
We demonstrate the emergence of superconductivity in pseudo-binary silicide SrNixSi2-x. The compound exhibits a structural phase transition from the cubic SrSi2-type structure (P4132) to the hexagonal AlB2-type structure (P6/mmm) upon substituting Ni for
Bordet P., Cava R. J., Evans M. J., Evers J., Evers J., Evers J., Evers J., Ghosh A. K., Hinks D. G., Hor W. J., Imai M., Imai M., Imai M., Imai M., Imai M., Imai M., Lorenz B., McWhan D. B., Meng R. L., Nasir N., Pei S., Sung H. H., Tamegai T., Werthamer N. R., Yamanaka S., Zherlitsyn S.   +25 more
core   +1 more source

Fractal Image Compression on Hexagonal Structure

Journal of Algorithms & Computational Technology, 2008
Fractal image compression (FIC) is a relatively recent image compression method. Its basic idea is to represent images as a fixed point of a contractive Iterated Function System (IFS).
Huaqing Wang, Xiangjian He, Tom Hintz, Qiang Wu   +3 more
doaj   +1 more source

Coverage-dependent adsorption sites for K/Cu(001) and Cs/Cu(001) determined by surface X-ray diffraction [PDF]

, 1994
Surface X-ray diffraction has been used to analyze in situ the room-temperature adsorption behaviour and the structure of K and Cs on Cu(100) at submonolayer coverages.
Eng, P. J., Jahns, V., Meyerheim, Holger L., Moritz, Wolfgang, Robinson, Ian K., Wever, J.   +5 more
core   +2 more sources

Nanostructural crystallization of metals

Литьë и металлургия, 2021
Based on thermodynamic calculations, it is shown that metal crystallization is an equilibrium nanostructural process. At the beginning, trigonal or tetragonal structure-forming nanocrystals are formed from elementary nanocrystals.
E. I. Marukovich, V. Yu. Stetsenko, A. V. Stetsenko   +2 more
doaj   +1 more source

Ab initio exchange interactions and magnetic properties of Gd2Fe17 iron sublattice: rhombohedral vs. hexagonal phases

, 2009
In the framework of the LSDA+U method electronic structure and magnetic properties of the intermetallic compound Gd2Fe17 for both rhombohedral and hexagonal phases have been calculated. On top of that, ab initio exchange interaction parameters within the
A. G. Kuchin, A. V. Lukoyanov, Ch. Kittel, E. E. Kokorina, I. A. Nekrasov, K. H. J. Buschow, M. V. Medvedev   +6 more
core   +1 more source

Lattice instabilities in hexagonal NiSi: A NiAs prototype structure [PDF]

, 2010
We report a first-principles study of the hexagonal NiSi phase with the B81 strukturbericht designation. This structure, reported by Föll Philos. Mag. A 45, 31 1982, d’Heurle J. Appl. Phys. 55, 4208 1984, and Dai Appl. Phys. Lett.
Connétable, Damien, Thomas, Olivier
core   +4 more sources

Antiferromagnetism in hexagonal graphene structures: Rings versus dots [PDF]

Physical Review B, 2013
6 pages.
Grujić, Marko, Tadić, Milan, Peeters, François   +2 more
openaire   +2 more sources

Structure and dynamics of topological defects in a glassy liquid on a negatively curved manifold [PDF]

, 2010
We study the low-temperature regime of an atomic liquid on the hyperbolic plane by means of molecular dynamics simulation and we compare the results to a continuum theory of defects in a negatively curved hexagonal background.
D. Hilbert, D. R. Nelson, D. R. Nelson, David R. Nelson, François Sausset, Gilles Tarjus, H. S. M. Coxeter, J. J. Thomson   +7 more
core   +2 more sources

Coordinated preparation of small-sized hydroxylated hexagonal boron nitride by ball milling and heat treatment [PDF]

Journal of Hebei University of Science and Technology
To address the issue of limited application of hexagonal boron nitride due to the low content of active groups on the surface, small-sized hydroxylated hexagonal boron nitride was prepared by using two methods: ball milling and high-temperature heating ...
Chang’an XU, Yang YANG, Qunfeng LIU
doaj   +1 more source

Hexagonal structure of phase III of solid hydrogen [PDF]

, 2016
A hexagonal structure of solid molecular hydrogen with $P6_122$ symmetry is calculated to be more stable below about 200 GPa than the monoclinic $C2/c$ structure identified previously as the best candidate for phase III.

core   +2 more sources