In-plane optical anisotropy in ReS flakes determined by angle-resolved polarized optical contrast spectroscopy.

Various in-plane anisotropic properties are observed for the layered semiconducting transition metal dichalcogenide (TMD), rhenium disulfide (ReS) due to its reduced symmetry. The understanding of these unique anisotropic behaviors in ReS will promote its applications in optoelectronics. In this work, angle-resolved polarized optical contrast spectroscopy has proved to be an efficient, quantitative, and non-destructive method to probe the optical anisotropy in ReS flakes with different thicknesses.

Pressure-Induced Phase Transition in Weyl Semimetallic WTe.

Tungsten ditelluride (WTe ) is a semimetal with orthorhombic T phase that possesses some unique properties such as Weyl semimetal states, pressure-induced superconductivity, and giant magnetoresistance. Here, the high-pressure properties of WTe single crystals are investigated by Raman microspectroscopy and ab initio calculations. WTe shows strong plane-parallel/plane-vertical vibrational anisotropy, stemming from its intrinsic Raman tensor.

(SP-4-4)-[Hydrogen N-({2-[(2S)-1-benzyl-pyrrolidine-2-carboxamido]phen-yl}(phen-yl)methyl-ene)-l-glutamato(2-)]nickel(II).

In the mol-ecule of the title complex, [Ni(C(30)H(29)N(3)O(5))], the Ni atom is coordinated in a distorted square-planar geometry by three N and one O atoms. The aromatic rings are oriented at dihedral angles of 29.01 (3), 79.