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The Zinc Story under High Pressure

The Zinc Story under High Pressure

作     者:Kenichi Takemura 

作者机构:Institute of Materials Structure Science (IMSS) High Energy Accelerator Research Organization (KEK) Tsukuba Japan 

出 版 物:《Journal of Minerals and Materials Characterization and Engineering》 (矿物质和材料特性和工程(英文))

年 卷 期:2019年第7卷第5期

页      面:354-372页

学科分类:07[理学] 0703[理学-化学] 

主  题:Zinc High Pressure Crystal Structure Electronic Topological Transition 

摘      要:A historical review is presented on the experimental and theoretical studies on Zn under high pressure. Based on our high-pressure powder x-ray diffraction experiments that have been done for nearly a decade, we describe the structural change of Zn up to 126 GPa at room temperature. Although several experimental and theoretical studies indicated an anomalous change of the c/a axial ratio with pressure, we found no such an anomaly within our experimental uncertainty. Our high-pressure low-temperature experiments up to 18 GPa at 40 K also gave no evidence of the c/a anomaly. We suspect that the pressure-transmitting media played an important role in producing the anomaly. The structural anisotropy of Zn is drastically reduced at high pressures, which would be a general trend for hexagonal close-packed (hcp) metals.

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