First-principles calculations of the electronic structure of C20, electric field, and monomer interaction effects

2013 ◽  
Vol 91 (1) ◽  
pp. 81-84
Author(s):  
Aqeel Mohsin Ali
Keyword(s):  
Density Functional Theory ◽  
Electric Field ◽  
First Principles ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
First Principles Calculations ◽  
Functional Theory ◽  
Relative Stabilities ◽  
The Density Functional Theory ◽  
Field Dependent

The density functional theory calculations are applied for C20 cage fullerenes. Furan, pyrole, and phenylvinyle monomers are made to interact with a C20 cage at the same C position. An electric field was applied with varying strength. Computations were carried out for all cases at the B3LYP/6-31G* level. The structure, energetic, and relative stabilities of the compounds were compared with each other and analyzed. In addition, the electric field dependent and independent electronic transition spectra of the proposed stable neutral C20 cage are investigated.

Density functional theory calculations of NO molecule adsorption on monolayer MoS2 doped by Fe atom

2015 ◽  
Vol 29 (27) ◽  
pp. 1550160 ◽  
Author(s):  
Yanhua Wang ◽  
Xiaoyu Shang ◽  
Xiaowei Wang ◽  
Jianying Tong ◽  
Jingcheng Xu
Keyword(s):  
Density Functional Theory ◽  
Spin Polarization ◽  
First Principles ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
First Principles Calculations ◽  
Monolayer Mos2 ◽  
Functional Theory ◽  
The Density Functional Theory ◽  
No Absorption

Functionalization of [Formula: see text] monolayer doped by the transition-metal Fe adatom [Formula: see text]–[Formula: see text] and NO absorption on [Formula: see text]–[Formula: see text] has been investigated computationally using first-principles calculations based on the density functional theory. We found that the system of [Formula: see text]–[Formula: see text] remains a semiconductor, with spin polarization at the Fermi level. However, for the system with absorption of NO molecule on the surface of [Formula: see text]–[Formula: see text] monolayer, its spin polarization is turned over at the Femi level, which provides a promising material for spintronic sensors.

Probing the electronic structures of Con (n = 1–5) clusters on γ-Al2O3 surfaces using first-principles calculations

2017 ◽  
Vol 19 (5) ◽  
pp. 3679-3687 ◽  
Author(s):  
Tao Yang ◽  
Masahiro Ehara
Keyword(s):  
Density Functional Theory ◽  
First Principles ◽  
Electronic Structures ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
First Principles Calculations ◽  
Functional Theory

Using density functional theory calculations, we discussed the geometric and electronic structures and nucleation of small Co clusters on γ-Al2O3(100) and γ-Al2O3(110) surfaces.

scholarly journals Electronic, optical and thermoelectric properties of Fe2ZrP compound determined via first-principles calculations

RSC Advances ◽  
2019 ◽  
Vol 9 (44) ◽  
pp. 25900-25911 ◽  
Author(s):  
Esmaeil Pakizeh ◽  
Jaafar Jalilian ◽  
Mahnaz Mohammadi
Keyword(s):  
Density Functional Theory ◽  
Thermoelectric Properties ◽  
First Principles ◽  
Density Functional ◽  
Transport Theory ◽  
First Principles Calculations ◽  
Boltzmann Transport ◽  
Functional Theory ◽  
Boltzmann Transport Theory ◽  
The Density Functional Theory

In this study, based on the density functional theory and semi-classical Boltzmann transport theory, we investigated the structural, thermoelectric, optical and phononic properties of the Fe2ZrP compound.

Unexpected superhard phases of niobium triborides: first-principles calculations

RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 49214-49220 ◽  
Author(s):  
Xiaofeng Li ◽  
Junyi Du
Keyword(s):  
Density Functional Theory ◽  
First Principles ◽  
Density Functional ◽  
High Pressures ◽  
Density Functional Theory Calculations ◽  
Search Method ◽  
First Principles Calculations ◽  
Functional Theory ◽  
Swarm Optimization ◽  
Structure Search

Using an unbiased structure search method based on particle-swarm optimization algorithms in combination with density functional theory calculations, we investigate the phase stability and electronic properties of NbB3 under high pressures.

scholarly journals Strain and electric field tunable electronic structure of buckled bismuthene

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39546-39555 ◽  
Author(s):  
Ming-Yang Liu ◽  
Yang Huang ◽  
Qing-Yuan Chen ◽  
Ze-Yu Li ◽  
Chao Cao ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Electric Field ◽  
First Principles ◽  
Density Functional ◽  
Single Layer ◽  
Density Functional Theory Calculations ◽  
Two Dimensional ◽  
Functional Theory

Based on first-principles density functional theory calculations, we systemically study the properties of two-dimensional buckled single-layer bismuth (b-bismuthene).

Electronic structure and magnetic ordering in gadolinium-doped AlGaN from LSDA + U calculations

2018 ◽  
Vol 07 (03) ◽  
pp. 1850019 ◽  
Author(s):  
S. Belhachi ◽  
S. Amari ◽  
B. Bouhafs
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Band Gap ◽  
First Principles ◽  
Density Functional ◽  
Magnetic Ordering ◽  
First Principles Calculations ◽  
Functional Theory ◽  
The Density Functional Theory ◽  
Indirect Band Gap

We present first-principles calculations of the structural, electronic and magnetic properties of Gd-doped [Formula: see text] based on the density functional theory within [Formula: see text] schemes. It is found that Gd atom favors substituting for Al site. Compared with undoped [Formula: see text], the Gd-doped [Formula: see text] has become an indirect band gap semiconductor of reduced band gap. The magnetic moment [Formula: see text] per molecule mainly comes from Gd ion with little contribution from the Ga, Al and N atoms. It is confirmed that the ferromagnetic configuration is stable for [Formula: see text]. It is found also that there is hybridization between the forbital of the Gd atom and the [Formula: see text] orbital of the N atom.

scholarly journals Boron-phil and boron-phob structure units in novel borides Ni3Zn2B and Ni2ZnB: experiment and first principles calculations

2018 ◽  
Vol 47 (10) ◽  
pp. 3303-3320 ◽  
Author(s):  
F. Failamani ◽  
R. Podloucky ◽  
J. Bursik ◽  
G. Rogl ◽  
H. Michor ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Crystal Structures ◽  
First Principles ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
First Principles Calculations ◽  
Functional Theory

The crystal structures of two novel borides τ5-Ni3Zn2B and τ6-Ni2ZnB, were determined. For these newly found phases as well as for τ3-Ni21Zn2B20 and τ4-Ni3ZnB2 density functional theory calculations (DFT-VASP) were performed.

First-Principles Study on Cl Adsorption on γ-TiAl(100) Surface

2013 ◽  
Vol 803 ◽  
pp. 370-374
Author(s):  
Si Jia Zhao ◽  
Li Ying Zhou ◽  
Fu He Wang
Keyword(s):  
Density Functional Theory ◽  
First Principles ◽  
Density Functional ◽  
First Principles Calculations ◽  
Hollow Site ◽  
Functional Theory ◽  
The Density Functional Theory ◽  
Result Show ◽  
Cl Atoms ◽  
Cl Atom

The adsorption of Cl on the γ-TiAl (100) surface is studied by using the first-principles calculations based on the density-functional theory. The calculated result show that the most stable site for Cl adsorption is the four-fold-hollow site denoted by HFa. The binding energy per Cl atom increases when the coverage is more than 0.75ML. The Cl atoms are more likely to interact with the Ti atoms than the Al atoms from not only the electronic structure but also the atomic structure.

Sign in / Sign up

Export Citation Format

Share Document