Antiphase magnetic boundaries in iron-based superconductors: A first-principles density-functional theory study

2009 ◽  
Vol 80 (14) ◽  
Author(s):  
Z. P. Yin ◽  
W. E. Pickett
Keyword(s):  
Density Functional Theory ◽  
First Principles ◽  
Density Functional ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Iron Based Superconductors ◽  
Iron Based

scholarly journals Screening for high-spin metal organic frameworks (MOFs): density functional theory study on DUT-8(M1,M2) (with Mi = V,…,Cu)

2016 ◽  
Vol 18 (11) ◽  
pp. 8075-8080 ◽  
Author(s):  
Sebastian Schwalbe ◽  
Kai Trepte ◽  
Gotthard Seifert ◽  
Jens Kortus
Keyword(s):  
Density Functional Theory ◽  
High Spin ◽  
First Principles ◽  
Density Functional ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Metal Centers ◽  
Metal Organic

We present a first principles study of low-spin (LS)/high-spin (HS) screening for 3d metal centers in the metal organic framework (MOF) DUT-8(Ni).

Fine tuning the band-gap of graphene by atomic and molecular doping: a density functional theory study

RSC Advances ◽  
2016 ◽  
Vol 6 (61) ◽  
pp. 55990-56003 ◽  
Author(s):  
Akhtar Hussain ◽  
Saif Ullah ◽  
M. Arshad Farhan
Keyword(s):  
Density Functional Theory ◽  
First Principles ◽  
Density Functional ◽  
Fine Tuning ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Structural And Electronic Properties ◽  
Doped Graphene ◽  
Molecular Doping ◽  
Co Doped

First-principles density functional theory (DFT) based calculations were carried out to investigate the structural and electronic properties of beryllium and nitrogen co-doped and BeN/BeO molecules-doped graphene systems.

Electronic band structures of Ge1−xSnx semiconductors: A first-principles density functional theory study

2013 ◽  
Vol 113 (6) ◽  
pp. 063517 ◽  
Author(s):  
Ming-Hsien Lee ◽  
Po-Liang Liu ◽  
Yung-An Hong ◽  
Yen-Ting Chou ◽  
Jia-Yang Hong ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
First Principles ◽  
Density Functional ◽  
Density Functional Theory Study ◽  
Band Structures ◽  
Electronic Band ◽  
Functional Theory ◽  
Electronic Band Structures

ELECTRONIC STRUCTURE OF K0.8Fe2Se2 FROM DENSITY FUNCTIONAL THEORY GW METHOD SIMULATION

2013 ◽  
Vol 27 (15) ◽  
pp. 1362017
Author(s):  
LIUXI TAN ◽  
RUI GUO ◽  
SHIZHONG YANG ◽  
EBRAHIM KHOSRAVI ◽  
GUANG-LIN ZHAO ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Electric Dipole ◽  
First Principles ◽  
Density Functional ◽  
Lattice Distortion ◽  
The Novel ◽  
Functional Theory ◽  
Density Analysis ◽  
Iron Based

First principles density functional theory — based (GW) method — was used to simulate the electronic structure of the novel iron-based superconductor K 0.8 Fe 2 Se 2. The calculated band gap of K 0.8 Fe 2 Se 2 at the Γ point is 0.15 eV, which is significantly lower than the 0.61 eV of vacancy free crystal KFe 2 Se 2. The d-orbital of Fe atom is overlapped with the p-orbital of Se atom. Charge density analysis shows strong lattice distortion and vacancy related electric dipole and quadruple near the K vacancy. The reflectivity is anisotropic in three coordinate directions.

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