Results 41 to 50 of about 14,400,955 (339)

Internal structure of hexagonal skyrmion lattices in cubic helimagnets [PDF]

, 2016
We report the most precise observations to date concerning the spin structure of magnetic skyrmions in a nanowedge specimen of cubic B20 structured FeGe.
D. McGrouther, R. Lamb, M. Krajnak, S. McFadzean, S. McVitie, R. Stamps, A. Leonov, A. Leonov, A. Bogdanov, Y. Togawa   +9 more
semanticscholar   +1 more source

Dynamics of wet granular hexagons [PDF]

, 2017
The collective behavior of vibrated hexagonal disks confined in a monolayer is investigated experimentally. Due to the broken circular symmetry, hexagons prefer to rotate upon sufficiently strong driving.
Baur, Manuel, Huang, Kai
core   +2 more sources

Hexagonal High-Entropy Alloys

, 2014
We report on the discovery of a high-entropy alloy with a hexagonal crystal structure. Equiatomic samples in the alloy system Ho-Dy-Y-Gd-Tb were found to solidify as homogeneous single-phase high-entropy alloys.
Feuerbacher, Michael, Heidelmann, Markus, Thomas, Carsten   +2 more
core   +1 more source

A 2D ultrasonic array design incorporating hexagonal-shaped elements for NDE applications [PDF]

, 2010
Contemporary 2D Ultrasonic arrays suffer from low SNR and limited steering capabilities. Yet, there is a great desire in the industry to increase the operational frequency, in order to enhance their volumetric imaging resolution.
Dziewierz, J., Gachagan, A., Hayward, G., O'Leary, R.L., Ramadas, S.N.   +4 more
core   +1 more source

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

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

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

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

Direct-bandgap emission from hexagonal Ge and SiGe alloys [PDF]

Nature, 2019
Silicon crystallized in the usual cubic (diamond) lattice structure has dominated the electronics industry for more than half a century. However, cubic silicon (Si), germanium (Ge) and SiGe alloys are all indirect-bandgap semiconductors that cannot emit ...
E. Fadaly, A. Dijkstra, J. R. Suckert, D. Ziss, M. V. van Tilburg, Chenyang Mao, Yizhen Ren, V. T. van Lange, K. Korzun, S. Kölling, M. Verheijen, D. Busse, C. Rödl, J. Furthmüller, F. Bechstedt, J. Stangl, J. Finley, S. Botti, J. Haverkort, E. Bakkers   +19 more
semanticscholar   +1 more source

Uniformly partitioning images on virtual hexagonal structure [PDF]

, 2006
Hexagonal structure is different from the traditionnal square structure for image representation. The geometrical arrangement of pixels on hexagonal structure can be described in terms of a hexagonal grid.
He, X, Hintz, T, Hur, N, Jia, W, Kim, J, Wang, H, Wu, Q   +6 more
core   +1 more source