Pressure-induced phase transitions, electronic, elastic and vibrational properties of zinc oxide under high pressure

被引：6
|
作者：
Kurkcu, Cihan [1 ,3 ]
Merdan, Ziya [2 ,3 ]
Yamcicier, Cagatay [2 ,3 ]
机构：
[1] Ahi Evran Univ, Dept Elect & Automat, TR-40100 Kirsehir, Turkey
[2] Gazi Univ, Fac Sci, TR-06500 Ankara, Turkey
[3] Gazi Univ, Inst Sci, TR-06500 Ankara, Turkey
来源：
INDIAN JOURNAL OF PHYSICS | 2019年 / 93卷 / 08期
关键词：
Phase transitions; Electronic structure calculations; Pressure; Bulk crystals; ROCK-SALT PHASE; STRUCTURAL-PROPERTIES; BRILLOUIN-SCATTERING; ZNO; COMPRESSIBILITY; PARAMETERS; DYNAMICS; FILM;
D O I：
10.1007/s12648-018-01365-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this work, the crystal structure of the ZnO was studied under high hydrostatic pressure using ab initio calculations. Pressure-volume relationships and structural transitions in ZnO were investigated using Siesta method. A first-order transition from the hexagonal wurtzite (B4) structure with space group P63mc to the cubic NaCl (B1) structure with space group Fm3m was successfully observed. A transition was also observed from Fm3m to another cubic CsCl (B2) structure with space group Pm 3m for ZnO. These phase transitions which occur around 9 and 119.5GPa were also analyzed from the total energy and enthalpy calculations. In addition, electronic, elastic and vibrational properties of ZnO were analyzed based on the high pressure.
引用
收藏
页码：979 / 989
页数：11
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