磷化镓
电阻率和电导率
材料科学
镓
霍尔效应
磷化物
凝聚态物理
晶界
电阻和电导
相变
磷化铟
金属
复合材料
砷化镓
冶金
光电子学
电气工程
微观结构
工程类
物理
作者
Yuqiang Li,Jie Liu,Ningru Xiao,Liyuan Yu,Jianxin Zhang,Pingfan Ning,Zanyun Zhang,Pingjuan Niu
标识
DOI:10.1002/pssb.201900470
摘要
The electrical transport properties of gallium phosphide (GaP) under high pressure (up to 50 GPa) are investigated using in situ impedance‐spectrum and Hall‐effect measurements. A discontinuous resistance is observed at 9.9 GPa because of the pressure‐induced grain boundary effect, whereas the pressure‐induced metallization of GaP occurred at ≈24.6 GPa. The metallization transition is determined by measuring the temperature‐dependent resistance and resistivity, and the transition is observed to be reversible. The main cause of the sharp decrease in the resistance and resistivity is a pressure‐induced structural phase transition at 39.3 GPa, as reflected by the measured Hall parameters.
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