scholarly journals Magnetism in Au-Supported Planar Silicene

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2568
Author(s):  
Mariusz Krawiec ◽  
Agnieszka Stępniak-Dybala ◽  
Andrzej Bobyk ◽  
Ryszard Zdyb
Keyword(s):  
Magnetic Properties ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Binding Energies ◽  
Magnetic Ground State ◽  
Functional Theory ◽  
Antiferromagnetic Ordering ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Ferromagnetic Structure

The adsorption and substitution of transition metal atoms (Fe and Co) on Au-supported planar silicene have been studied by means of first-principles density functional theory calculations. The structural, energetic and magnetic properties have been analyzed. Both dopants favor the same atomic configurations with rather strong binding energies and noticeable charge transfer. The adsorption of Fe and Co atoms do not alter the magnetic properties of Au-supported planar silicene, unless a full layer of adsorbate is completed. In the case of substituted system only Fe is able to produce magnetic ground state. The Fe-doped Au-supported planar silicene is a ferromagnetic structure with local antiferromagnetic ordering. The present study is the very first and promising attempt towards ferromagnetic epitaxial planar silicene and points to the importance of the substrate in structural and magnetic properties of silicene.

The electronic and magnetic properties of h-BN/MoS2 heterostructures intercalated with 3d transition metal atoms

2021 ◽  
Vol 23 (1) ◽  
pp. 506-513
Author(s):  
Fei Liu ◽  
Yujie Liao ◽  
Yanbing Wu ◽  
Zongyu Huang ◽  
Huating Liu ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Functional Theory ◽  
Electronic And Magnetic Properties ◽  
Metal Atoms ◽  
Transition Metal Atoms

We performed density functional theory calculations to investigate the electronic and magnetic properties of h-BN/MoS2 heterostructures intercalated with 3d transition-metal (TM) atoms, including V, Cr, Mn, Fe, Co, and Ni atoms.

scholarly journals Electronic and magnetic properties of a black phosphorene/Tl2S heterostructure with transition metal atom intercalation: a first-principles study

RSC Advances ◽  
2019 ◽  
Vol 9 (34) ◽  
pp. 19418-19428
Author(s):  
Yusheng Wang ◽  
Xiaoyan Song ◽  
Nahong Song ◽  
Tianjie Zhang ◽  
Xiaohui Yang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
First Principles ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Functional Theory ◽  
Electronic And Magnetic Properties ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Black Phosphorene

Using density functional theory calculations, the structural, electronic and magnetic properties of a black phosphorene/Tl2S heterostructure (BP/Tl2S) and the BP/Tl2S intercalated with transition metal atoms (TMs) have been detailed investigated.

STRUCTURES, ELECTRONIC AND MAGNETIC PROPERTIES OF C20 FULLERENES DOPED TRANSITION METAL ATOMS M@C20 (M = Fe, Co, Ti, V)

2010 ◽  
Vol 21 (12) ◽  
pp. 1469-1477 ◽  
Author(s):  
M. SAMAH ◽  
B. BOUGHIDEN
Keyword(s):  
Density Functional Theory ◽  
Magnetic Moment ◽  
Density Functional ◽  
Binding Energies ◽  
Functional Theory ◽  
Magnetic Dipoles ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
Semiconductor Behavior ◽  
Co Doped

Structures, binding energies, magnetic and electronic properties endohedrally doped C 20 fullerenes by metallic atoms ( Fe , Co , Ti and V ) have been obtained by pseudopotential density functional theory. All M @ C 20, except Co @ C 20, are more stable than the undoped C 20 cage. The magnetic moment values are 1 and 2μB. These values and semiconductor behavior give to these compounds interesting feature in several technological applications. Titanium doped C 20 has a same magnetic moment than the isolated Ti atom. Hybridization process in the Co doped C 20 fullerene is most strong than in other doped cages. Electrical and magnetic dipoles calculated in the iron doped C 20 are very strong compared with other clusters.

First-Principles Analysis on Interaction between Dopant (Ga, Sb) and Contamination Metal Atoms in Ge Crystals

2013 ◽  
Vol 205-206 ◽  
pp. 417-421
Author(s):  
Tatsunori Yamato ◽  
Koji Sueoka ◽  
Takahiro Maeta
Keyword(s):  
First Principles ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Binding Energies ◽  
Functional Theory ◽  
Substitutional Site ◽  
Metal Impurities ◽  
Metal Atoms ◽  
Total Energies ◽  
Group 3

The lowest energetic configurations of metal impurities in 4throw (Sc - Zn), 5throw (Y - Cd) and 6throw (Hf - Hg) elements in Ge crystals were determined with density functional theory calculations. It was found that the substitutional site is the lowest energetic configuration for most of the calculated metals in Ge. The most stable configurations of dopant (Ga, Sb) - metal complexes in Ge crystals were also investigated. Following results were obtained. (1) For Ga dopant, 1st neighbor T-site is the most stable for metals in group 3 to 7 elements while substitutional site next to Ga atom is the most stable for metals in group 8 to 12 elements. (2) For Sb dopant, substitutional site next to Sb atom is the most stable for all calculated metals. Binding energies of the interstitial metalMiwith the substitutional dopantDswere obtained by the calculated total energies. The calculated results for Ge were compared with those for Si.

scholarly journals Electronic and Magnetic Properties of One Dimensional Sandwich Transition Metal-Anthracene Molecular Wires

2021 ◽  
Author(s):  
Guang Yang ◽  
Huiyang Zhang ◽  
Yijun Yang ◽  
Yudi Wang ◽  
Xinzi Xv ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Molecular Wires ◽  
Binding Energies ◽  
One Dimensional ◽  
Electronic And Magnetic Properties ◽  
Antiferromagnetic Ordering ◽  
Potential Applications

Organometallic sandwich complexes have been attracting tremendous interest for their potential applications in electronics and spintronics. Here, we systematically studied the structures, electronic and magnetic properties of one dimensional (1D) transition metal (TM)-anthracene (Ant) sandwich molecular wires (SMWs), [TM2Ant]∞ and [TM3Ant]∞ (TM=Ti, V, Cr, Mn), based on density functional theory calculations. Our results showed that all the 1D SMWs display normal sandwich configurations with their binding energies closely related to the choice of TM atoms. Excepting 1D [Mn2Ant]∞ and [Fe3Ant]∞ favoring antiferromagnetic ordering, most 1D [TM2Ant]∞ and [TM3Ant]∞ SMWs display robust ferromagnetic feathers. Particularly, 1D [Cr3Ant]∞ SMW is revealed to be ferromagnetic half-metal with large magnetic moment of 28.0µB per unit cell. Further spintransport calculations double proved that 1D [Cr3Ant]∞ SMW are good spintransport molecular devices. Our findings shed light on the properties of 1D Ant based SMWs and propose a new way to design potential electronic and spintronic devices.

Density functional theory calculations on transition metal atoms adsorbed on graphene monolayers

2017 ◽  
Vol 421 ◽  
pp. 252-259 ◽  
Author(s):  
Nicholas Dimakis ◽  
Fernando Antonio Flor ◽  
Andres Salgado ◽  
Kolade Adjibi ◽  
Sarah Vargas ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Functional Theory ◽  
Metal Atoms ◽  
Transition Metal Atoms

Effect of atomic configuration and spin-orbit coupling on thermodynamic stability and electronic bandgap of monolayer 2H-Mo1-xWxS2 solid solutions

2021 ◽  
Author(s):  
Chayanon Atthapak ◽  
Annop Ektarawong ◽  
Teerachote Pakornchote ◽  
Björn Alling ◽  
Thiti Bovornratanaraks
Keyword(s):  
Thermodynamic Stability ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Functional Theory ◽  
Metal Atoms ◽  
Transition Metal Atoms ◽  
The Density Functional Theory

Through a combination of the density functional theory calculations and the cluster-expansion formalism, an effect of configuration of transition metal atoms and spin-orbit coupling on the thermodynamic stability and electronic...

scholarly journals The effect of helium nano-bubbles on the structures stability and electronic properties of palladium tritides: a density functional theory study

2014 ◽  
Vol 470 (2171) ◽  
pp. 20140357 ◽  
Author(s):  
N. K. Das ◽  
K. Rigby ◽  
N. H. de Leeuw
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Density Functional Theory Study ◽  
Functional Theory ◽  
Perfect Lattice ◽  
Helium Atoms ◽  
Helium Clusters ◽  
Octahedral Sites ◽  
Metal Atoms

Density functional theory calculations have been used to study the incorporation of helium in perfect and defect-containing palladium tritides, where we have calculated the energetics of incorporation and the migration behaviour. Helium atoms preferably occupy the octahedral interstitial and substitutional sites in the perfect and Pd vacancy-containing tritides, respectively. The energetics reveal that helium clusters can form in the lattice, which displace the Pd metal atoms. The defective lattice shows less expansion compared with the perfect lattice, which can accommodate the helium less easily. The path from octahedral–tetrahedral–octahedral sites is the lowest energy pathway for helium diffusion, and the energetics indicate that the helium generated from tritium decay can accumulate in or near the octahedral sites. Density of states analyses shows the hybridization between palladium d and tritium s orbitals and repulsion between palladium d and helium s orbitals, which can distort the lattice as a result of generating localized stress.

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