ChemInform Abstract: Twofold Coordinated Ground-State and Eightfold High-Pressure Phase of Heavy Transition Metal Nitrides MN2 (M: Os, Ir, Ru, and Rh).

ChemInform ◽  
2009 ◽  
Vol 40 (51) ◽  
pp. no-no ◽  
Author(s):  
Yinwei Li ◽  
Hui Wang ◽  
Quan Li ◽  
Yanming Ma ◽  
Tian Cui ◽  
...  
Keyword(s):  
High Pressure ◽  
Transition Metal ◽  
Ground State ◽  
High Pressure Phase ◽  
Metal Nitrides ◽  
Transition Metal Nitrides ◽  
Pressure Phase

Twofold Coordinated Ground-State and Eightfold High-Pressure Phases of Heavy Transition Metal Nitrides MN2(M = Os, Ir, Ru, and Rh)

2009 ◽  
Vol 48 (20) ◽  
pp. 9904-9909 ◽  
Author(s):  
Yinwei Li ◽  
Hui Wang ◽  
Quan Li ◽  
Yanming Ma ◽  
Tian Cui ◽  
...  
Keyword(s):  
High Pressure ◽  
Transition Metal ◽  
Ground State ◽  
Metal Nitrides ◽  
Transition Metal Nitrides

Theoretical study of ground state and high-pressure phase of platinum carbide

2008 ◽  
Vol 69 (11) ◽  
pp. 2907-2910 ◽  
Author(s):  
M. Rabah ◽  
D. Rached ◽  
M. Ameri ◽  
R. Khenata ◽  
A. Zenati ◽  
...  
Keyword(s):  
High Pressure ◽  
Ground State ◽  
Theoretical Study ◽  
High Pressure Phase ◽  
Pressure Phase

scholarly journals High-Pressure Annealing of a Prestructured Nanocrystalline Precursor to Obtain Tetragonal and Orthorhombic Polymorphs of Hf3N4

2014 ◽  
Vol 1655 ◽  
Author(s):  
Ashkan Salamat ◽  
Pierre Bouvier ◽  
Benjamin M. Gray ◽  
Andrew L. Hector ◽  
Simon A. J. Kimber ◽  
...  
Keyword(s):  
High Pressure ◽  
Transition Metal ◽  
Fluorite Structure ◽  
Metal Nitrides ◽  
Transition Metal Nitrides ◽  
X Ray Diffraction ◽  
Semiconducting Materials ◽  
Composition And Structure ◽  
Metal Organic ◽  
Diamond Anvil

ABSTRACTTransition metal nitrides containing metal ions in high oxidation states are a significant goal for the discovery of new families of semiconducting materials. Most metal nitride compounds prepared at high temperature and high pressure from the elements have metallic bonding. However amorphous or nanocrystalline compounds can be prepared via metal-organic chemistry routes giving rise to precursors with a high nitrogen:metal ratio. Using X-ray diffraction in parallel with high pressure laser heating in the diamond anvil cell this work highlights the possibility of retaining the composition and structure of a metastable nanocrystalline precursor under high pressure-temperature conditions. Specifically, a nanocrystalline Hf3N4 with a tetragonal defect-fluorite structure can be crystallized under high-P,T conditions. Increasing the pressure and temperature of crystallization leads to the formation of a fully recoverable orthorhombic (defect cottunite-structured) polymorph. This approach identifies a novel class of pathways to the synthesis of new crystalline nitrogen-rich transition metal nitrides.

scholarly journals High-pressure phase transition of alkali metal–transition metal deuteride Li2PdD2

2017 ◽  
Vol 146 (23) ◽  
pp. 234506
Author(s):  
Yansun Yao ◽  
Elissaios Stavrou ◽  
Alexander F. Goncharov ◽  
Arnab Majumdar ◽  
Hui Wang ◽  
...  
Keyword(s):  
Phase Transition ◽  
High Pressure ◽  
Transition Metal ◽  
Alkali Metal ◽  
High Pressure Phase ◽  
High Pressure Phase Transition ◽  
Pressure Phase

First-principles calculations of ground-state and high-pressure phase of magnesium telluride

2006 ◽  
Vol 37 (4) ◽  
pp. 603-606 ◽  
Author(s):  
M. Rabah ◽  
D. Rached ◽  
N. Benkhettou ◽  
R. Khenata ◽  
H. Baltache ◽  
...  
Keyword(s):  
High Pressure ◽  
Ground State ◽  
First Principles ◽  
High Pressure Phase ◽  
First Principles Calculations ◽  
Pressure Phase
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