2014 In the most general case the orientation distribution function (texture) is a function on the space of orthogonal transformations which splits into a couple of functions on the space of rotations. In the case of non-enantiomorphic crystal symmetry groups only one of these functions is independent. Sample symmetry (especially centrosymmetry) can be achieved in a trivial and a non-trivial wa...

The translational symmetry breaking of a crystal at its surface may form two-dimensional (2D) electronic states. We observed one-dimensional nonlinear optical edge states of a single atomic membrane of molybdenum disulfide (MoS2), a transition metal dichalcogenide. The electronic structure changes at the edges of the 2D crystal result in strong resonant nonlinear optical susceptibilities, allow...

The translational symmetry breaking of a crystal at its surface may form two-dimensional (2D) electronic states. We observed one-dimensional nonlinear optical edge states of a single atomic membrane of molybdenum disulfide (MoS2), a transition metal dichalcogenide. The electronic structure changes at the edges of the 2D crystal result in strong resonant nonlinear optical susceptibilities, allow...

CrystalWalk is a crystal editor and visualization software designed for teaching materials science and engineering. Based on WebGL/HTML5, it provides an accessible and interactive platform to students and teachers by introducing a simplified crystallographic approach that creates crystal structures by combining a lattice with a motif without the use of its internal symmetry. CrystalWalk is the ...

Two versions of the functional core of the rabbit voltage-dependent calcium channel beta2a subunit were expressed in Escherichia coli. These proteins were purified to homogeneity and screened for crystallization. Crystallization conditions were refined using the hanging-drop vapour-diffusion method and two crystal forms were pursued. Crystal form I is represented by thick rods with tetragonal s...

(H(2)O)(32)-shell structure constructed by two unique water molecules in high symmetry crystal leads to good water-solubility of the obtained compound 1.

We report evidence of a superconducting instability (of T1g symmetry) in the infiniteU Anderson lattice in the presence of crystal fields of cubic symmetry. We assume a lattice of 4f sites, each with a total angular momentum of J = 5/2 that is split by crystal fields into a low-lying doublet of Γ7 symmetry and an excited quartet of Γ8 symmetry. Slave Bosons on the 4f sites create and destroy 4f...

There are two molecules in the asymmetric unit of the title compound, C(24)H(22)N(2)O(4)S. The conformation of the seven-membered ring is twisted boat for both molecules. The molecule is chiral, but crystal symmetry generates a recemate. The crystal packing is stabilized by weak intermolecular C-H⋯O hydrogen bonds.

We consider the theory of fluctuations of a colloidal solid observed in a confocal slice. For a cubic crystal we study the evolution of the projected elastic properties as a function of the anisotropy of the crystal using numerical methods based on the fast Fourier transform. In certain situations of high symmetry we find exact analytic results for the projected fluctuations.

In the title salt, (C(8)H(15)N(3))[CdBr(4)], four Br atoms coordinate the Cd(II) atom in a distorted tetra-hedral geometry. In the crystal, weak N-H⋯Br inter-actions connect the anion to three symmetry-related cations. The crystal structure also displays very weak C-H⋯Br inter-actions.