scholarly journals Spin orientations of the spin-half Ir4+ ions in Sr3NiIrO6, Sr2IrO4, and Na2IrO3: Density functional, perturbation theory, and Madelung potential analyses

2016 ◽  
Vol 144 (11) ◽  
pp. 114706 ◽  
Author(s):  
Elijah E. Gordon ◽  
Hongjun Xiang ◽  
Jürgen Köhler ◽  
Myung-Hwan Whangbo
Keyword(s):  
Perturbation Theory ◽  
Density Functional ◽  
Density Functional Perturbation Theory ◽  
Madelung Potential

scholarly journals Mechanical properties of zirconium alloys and zirconium hydrides predicted from density functional perturbation theory

2015 ◽  
Vol 44 (43) ◽  
pp. 18769-18779 ◽  
Author(s):  
Philippe F. Weck ◽  
Eunja Kim ◽  
Veena Tikare ◽  
John A. Mitchell
Keyword(s):  
Mechanical Properties ◽  
Perturbation Theory ◽  
Elastic Properties ◽  
Density Functional ◽  
Mechanical Stability ◽  
Zirconium Alloys ◽  
Density Functional Perturbation Theory ◽  
Zirconium Hydrides

The elastic properties and mechanical stability of zirconium alloys and zirconium hydrides have been investigated within the framework of density functional perturbation theory. Results show that the lowest-energy Pn3̄m δ-ZrH1.5 phase is not mechanically stable.

Phonon dispersion and zero-point renormalization of LiNbO3from density-functional perturbation theory

2015 ◽  
Vol 27 (38) ◽  
pp. 385402 ◽  
Author(s):  
Michael Friedrich ◽  
Arthur Riefer ◽  
Simone Sanna ◽  
W G Schmidt ◽  
Arno Schindlmayr
Keyword(s):  
Perturbation Theory ◽  
Density Functional ◽  
Phonon Dispersion ◽  
Zero Point ◽  
Density Functional Perturbation Theory
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