Boron is one of the most fascinating and important elements that can adopt a rich variety of crystal structures with unusual and complex covalent bonds.[1,2] The striking semiconductivity of boron ste
Semi-transition-metal borides,e.g.,Ti2B,Cr2B,Mn2B,Fe2B,Co2B,Ni2B,Nb2B,Mo2B,Ta2B and W2B,are long-believed to have Al2Cu-type structure with a I4/mcm symmetry.
Silicon in cubic diamond structure plays a significant role in photovoltaic industry.However,the intrinsic band structures of crystalline silicon restrict its sunlight conversion efficiency.
Boron Nitride(BN)is isoelectronic to carbon.Carbon can be semiconductor or insulator depending on its structures,and the conductive can be one-dimensional(1D),two-dimensional(2D)and three-dimensional(
Transition metal hydrides are interesting owing to their potentially important physical properties such as hydrogen storage capability and hydrogen-mediated superconductivity[1,2].
Observation of high-temperature superconductivity in compressed sulfur hydrides has generated an irresistible wave of searches for new hydrogen-containing superconductors.
Hydrogen-rich materials can be metallized at much lower pressures due to "chemical pre-compression" and considered as good candidates for high Tc superconductors.
High-pressure synthesis is a powerful method to synthesize novel hydrides because hydrogen becomes extremely reactive [1] to form novel hydrides under high pressure.