scholarly journals Bi vacancy formation in BiFeO3 epitaxial thin films under compressive (001)-strain from first principles

2019 ◽  
Vol 7 (16) ◽  
pp. 4870-4878
Author(s):  
Lu Xia ◽  
Thomas Tybell ◽  
Sverre M. Selbach

Bi vacancy formation upon epitaxial (001)-strain in BiFeO3 was investigated by Density Functional Theory (DFT) calculations.

Author(s):  
Behnaz Abyaz ◽  
Zabiollah Mahdavifar ◽  
Georg Schreckenbach ◽  
Yang Gao

Evolutionary searches using the USPEX method (Universal Structure Predictor: Evolutionary Xtallography) combined with density functional theory (DFT) calculations were performed to obtain the global minimum structures of beryllium (Ben, n=3-25)...


Author(s):  
Amina Bouheddadj ◽  
Tarik Ouahrani ◽  
Gbèdodé Wilfried KANNHOUNON ◽  
Boufatah Reda ◽  
Sumeya Bedrane ◽  
...  

First-principles based on density functional theory (DFT) calculations were performed to investigate the interaction of two-dimensional (2D) HfS2 with SO2, a harmful gas with implications for climate change. In particular,...


RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3825-3832 ◽  
Author(s):  
Tsung-Fan Teng ◽  
Santhanamoorthi Nachimuthu ◽  
Wei-Hsiu Hung ◽  
Jyh-Chiang Jiang

We employed density functional theory (DFT) calculations to examine the adsorption configurations and possible reaction paths for H2S on a Ge(100) surface.


RSC Advances ◽  
2015 ◽  
Vol 5 (69) ◽  
pp. 55762-55773 ◽  
Author(s):  
Saif Ullah ◽  
Akhtar Hussain ◽  
WaqarAdil Syed ◽  
Muhammad Adnan Saqlain ◽  
Idrees Ahmad ◽  
...  

First-principles density functional theory (DFT) calculations were carried out to investigate the structural and electronic properties of beryllium (Be) doped and, Be with boron (B) co-doped graphene systems.


2015 ◽  
Vol 5 (9) ◽  
pp. 4547-4555 ◽  
Author(s):  
Pavlo Kostetskyy ◽  
Giannis Mpourmpakis

Olefin formation pathways on Lewis acid (LA) sites of Al2O3, Ga2O3 and In2O3 and gallium- and indium-doped alumina were investigated using Density Functional Theory (DFT) calculations.


2005 ◽  
Vol 494 ◽  
pp. 79-82 ◽  
Author(s):  
V. Koteski ◽  
Bozidar Cekić ◽  
N. Novaković ◽  
J. Belošević-Čavor

The structural and geometric properties of small Mo clusters are studied by means of first principles density functional theory (DFT) calculations with planewaves and pseudopotentials. The lowest energy structures of Mon (n=2-6) clusters are determined. The evolution of electronic properties with increasing cluster size is discussed. The geometric structure, average bond lengths, and binding energies of the lowest energy isomers are reported and the results are compared with the available experimental and theoretical data.


Author(s):  
Ellaine Rose A. Beronio ◽  
Ivy R. Colambo ◽  
Allan Abraham Bustria Padama

Using density functional theory (DFT) calculations, we examine the effect of substitutional doping on the formation of Cu vacancies in Cu2O(111). Upon replacing coordinatively-unsaturated O with other elements (N, F,...


Author(s):  
Bao Zhu ◽  
Kai Zheng ◽  
Xianping Chen ◽  
Jian Qiu ◽  
Haojie Guo ◽  
...  

In this study, the adsorption of gas molecules, such as O2, NH3, CO, CO2, H2O, NOx (x = 1, 2) and SO2, on Janus Te2Se monolayer has been investigated by means of density functional theory (DFT) calculations.


2016 ◽  
Vol 30 (24) ◽  
pp. 1650168 ◽  
Author(s):  
Kun Yang ◽  
Yanqing He ◽  
Li Yao ◽  
Yi Cheng ◽  
Guiqiu Wang ◽  
...  

The geometric and electronic structures of the cubic CaHfO3 (001) surfaces have been studied using first-principles density functional theory (DFT) calculations. Two different terminations, CaO- and HfO2-terminated surfaces, were investigated. It has been found that Ca atom has the largest relaxation for both kinds of terminations, and the surface rumpling of the CaO termination is far more prominent than that of the HfO2-terminated surface. Both the bandgaps of the CaO- and HfO2-terminated surfaces were calculated to be smaller than that of the CaHfO3 bulk. It was also shown that the CaO-terminated surface has a lower energy than the HfO2-terminated surface.


RSC Advances ◽  
2017 ◽  
Vol 7 (20) ◽  
pp. 12382-12390 ◽  
Author(s):  
U. P. Gawai ◽  
U. P. Deshpande ◽  
B. N. Dole

First principles density functional theory (DFT) calculations were employed to study the structural and electronic properties of pure and Al doped ZnS nanorods.


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