Phase transition and electronic properties of skutterudite-type IrP3 under high pressure

2019 ◽  
Vol 21 (38) ◽  
pp. 21262-21266 ◽  
Author(s):  
Xuejiao Ma ◽  
Dan Zhou ◽  
Yan Yan ◽  
Jing Xu ◽  
Siyuan Liu ◽  
...  

We present an extensive global structural optimization to identify the crystal structures of IrP3 using the developed CALYPSO method under both ambient and high-pressure conditions.

2015 ◽  
Vol 17 (30) ◽  
pp. 19957-19961 ◽  
Author(s):  
Thanayut Kaewmaraya ◽  
Wei Luo ◽  
Xiao Yang ◽  
Puspamitra Panigrahi ◽  
Rajeev Ahuja

We present the crystal structures and electronic properties of a Co3O4 spinel under high pressure.


RSC Advances ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 2448-2452
Author(s):  
Lili Lian ◽  
Yan Liu ◽  
Da Li ◽  
Shuli Wei

The structural phase transition, electronic properties, and bonding properties of antimony nitrides have been studied by using a first principles method.


CrystEngComm ◽  
2020 ◽  
Vol 22 (20) ◽  
pp. 3531-3538
Author(s):  
Ken Niwa ◽  
Tomoya Inagaki ◽  
Tetsu Ohsuna ◽  
Zheng Liu ◽  
Takuya Sasaki ◽  
...  

Sn3N4 polymorphs were synthesized via high-pressure nitridation of tin by means of laser-heated diamond anvil cell technique. This implies new insight into the crystal chemistry and functional materials of group IVA nitrides.


2018 ◽  
Vol 20 (14) ◽  
pp. 9488-9497 ◽  
Author(s):  
Pornmongkol Jimlim ◽  
Komsilp Kotmool ◽  
Udomsilp Pinsook ◽  
Suttichai Assabumrungrat ◽  
Rajeev Ahuja ◽  
...  

The structural phase transition and electronic properties of Li2O2 under pressures up to 500 GPa have been investigated using first-principles calculations.


Symmetry ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 972 ◽  
Author(s):  
Fang Yu ◽  
Yu Liu

A calculation program based on the density functional theory (DFT) is applied to study the structural, mechanical, and electronic properties of TiV alloys with symmetric structure under high pressure. We calculate the dimensionless ratio, elastic constants, shear modulus, Young’s modulus, bulk modulus, ductile-brittle transition, material anisotropy, and Poisson’s ratio as functions of applied pressure. Results suggest that the critical pressure of structural phase transition is 42.05 GPa for the TiV alloy, and structural phase transition occurs when the applied pressure exceeds 42.05 GPa. High pressure can improve resistance to volume change, as well as the ductility and atomic bonding, but the strongest resistances to elastic and shear deformation occur at P = 5   GPa for TiV alloy. Furthermore, the results of the density of states (DOS) indicate that the TiV alloy presents metallicity. High pressure disrupts the structural stability of the TiV alloy with symmetry, thereby inducing structural phase transition.


2006 ◽  
Vol 73 (2) ◽  
Author(s):  
Georg Heimel ◽  
Kerstin Hummer ◽  
Claudia Ambrosch-Draxl ◽  
Withoon Chunwachirasiri ◽  
Michael J. Winokur ◽  
...  

2017 ◽  
Vol 4 (8) ◽  
pp. 1337-1343 ◽  
Author(s):  
Jun Zhang ◽  
Rui Su ◽  
Xiancheng Wang ◽  
Wenmin Li ◽  
Jianfa Zhao ◽  
...  

The new semiconducting compounds Ba9Sn3(Te1−xSex)15 synthesized under high pressure and high temperature are constructed with trimeric SnTe/Se6 octahedron chains.


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