Pressure-dependent phase transition of 2D layered silicon telluride(Si2le3)and manganese intercalated silicon telluride
2D 的压力依赖者阶段转变分层的硅碲化物(Si <sub>2</sub > Te <sub>3</sub>) 和锰设置了硅碲化物作者机构：Department of ChemistryUniversity of CaliforniaDavisDavisCA 95616USA
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2019年第12卷第9期
页 面：2373-2377页
核心收录：
基 金：supported by the Office of Naval Research
主 题：silicon telluride Si2Te3 high pressure diamond anvil cell two-dimensional(2D)layered material
摘 要：Two-dimensional(2D)layered silicon telluride(SizTes)nanocrystals were compressed to 12 GPa using diamond anvil cell *** measurements show a color change from transparent red to opaque black indicating a semiconductor-to-metal phase *** scattering was used to observe the stiffening of the crystal lattice and subsequent phase behavior.A possible phase transition was *** 9.5±0.5 GPa evidenced by the disappearance of the Atg stretching *** was intercalated with elemental manganese to^1 at.%.Intercalation lowers the pressure of the proposed phase transition to 7.5±1 *** modes show both phonon stiffening and phonon softening,suggesting negative linear *** results provide fundamental insight into the high-pressure optical phonon behavior of silicon telluride and illuminate how a specific electron-donating intercalant can chemically alter pressure-dependent optical phonon behavior.
维普期刊数据库