Role of Partial Vacancy and Structural Distortion in the Stability of Nonstoichiometric Phases NiInSeS (1.26 ≥ δ ≥ 0.94; 0 ≤ ≤ 1.33).

This study explores the structure and stability of partly disordered sulfur-substituted NiInSe (4/, = 3.6766(1) Å, = 18.8178(10) Å, = 2).

CuTiTe: Synthesis, Crystal Structure, and Chemical Bonding.

A new compound CuTiTe in the Cu-Ti-Te ternary system is prepared using high-temperature solid-state synthesis and characterized by single-crystal X-ray diffraction and energy-dispersive X-ray spectroscopy. The average structure of CuTiTe crystallizes in the cubic space group 4̅3 (9; = 5.9484(1) Å) and adopts the CuTiSe structure type.

Ultralow Lattice Thermal Conductivity at Room Temperature in Cu TiSe.

Ultralow thermal conductivity draws great attention in a variety of fields of applications such as thermoelectrics and thermal barrier coatings. Herein, the crystal structure and transport properties of Cu TiSe are reported. Cu TiSe is a unique example of a non-toxic and low-cost material that exhibits a lattice ultra-low thermal conductivity of 0.