VI -a New Layered Ferromagnetic Semiconductor.

2D materials are promising candidates for next-generation electronic devices. In this regime, insulating 2D ferromagnets, which remain rare, are of special importance due to their potential for enabling new device architectures. Here the discovery of ferromagnetism is reported in a layered van der Waals semiconductor, VI , which is based on honeycomb vanadium layers separated by an iodine-iodine van der Waals gap.

A gap-protected zero-Hall effect state in the quantum limit of the non-symmorphic metal KHgSb.

A recurring theme in topological matter is the protection of unusual electronic states by symmetry, for example, protection of the surface states in Z topological insulators by time-reversal symmetry. Recently, interest has turned to unusual surface states in the large class of non-symmorphic materials. In particular, KHgSb is predicted to exhibit double quantum spin Hall states.

Triangular Rare-Earth Lattice Materials RbBa R(BO) ( R = Y, Gd-Yb) and Comparison to the KBa R(BO) Analogs.

A previously unreported family of electrically insulating rare-earth borates, RbBa R(BO) ( R = Y, Gd-Yb), was designed and then successfully obtained by traditional solid-state reaction. They crystallize in a monoclinic crystal system space group P2 /m (No. 11).

The h-Sb WO Oxygen Excess Antimony Tungsten Bronze.

We describe the previously unreported oxygen excess hexagonal antimony tungsten bronze is reported, with a composition of Sb W O , in the following denoted as h-Sb WO with x=0.167, to demonstrate its analogy to classical A WO tungsten bronzes. This compound forms in a relatively narrow temperature range between 580 °C View Article and Find Full Text PDF

Crystal growth and stoichiometry-dependent properties of the ferromagnetic Weyl semimetal ZrCo Sn.

We report the growth of high quality bulk crystals, through crystallization from molten Sn flux, of the predicted ferromagnetic Weyl metal ZrCo Sn with the L2 Heusler phase structure. The concentration of Co vacancies in the single crystals is found to be dependent on the initial concentration of Co in the flux. The saturation magnetization increases approximately linearly with decreasing Co deficiency and the ferromagnetic transition temperature changes significantly.