Prediction of electronic and magnetic properties in 3d-transition-metal X-doped bismuthene (X = V, Cr, Mn and Fe)

Qi, Mengyu; Dai, Shuhua; Wu, Peng

doi:10.1016/j.apsusc.2019.05.002

Cited by 28 publications

(16 citation statements)

References 32 publications

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“…Vanadium doped bulk bismuthene forms covalent bonds with Bi host atoms, inducing a small inward relaxation of the Bi nearest neighbors. The bond-lengths of the Bi neighbors to the impurity is 2.81 Å, which is shorter than the pristine Bi-Bi distance of 3.12 Å, in agreement with previous results and similar to other TMs [31][32][33].…”

Section: Resultssupporting

confidence: 92%

“…Also the search for high speed dissipationless devices using bismuthene has become more intense after its synthesis on distinct surfaces using different techniques [9,10,15,[26][27][28][29]. Moreover, bulk bismuthene doped with transition metals (TMs) is predicted to rich magnetic properties [30][31][32][33]. The TMs provide the bismuthene with magnetic impurities which, at low density, can interact with each other leading to stable magnetic phases.…”

Section: Introductionmentioning

confidence: 99%

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RKKY interactions mediated by topological states in transition metal doped bismuthene

Lopes¹,

Vernek²,

Schmidt³

2022

Preprint

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We have investigated magnetic interactions between transition metal ions in bismuthene topological insulator with protected edge states. We find that these topological states have a crucial role on the magnetic interactions in 2D topological insulators. Using first-principles and model Hamiltonian we make a comparative study of transition metal doped bulk and nanoribbon bismuthene. While direct overlap between the transition metal prevails in gapped bulk bismuthene, at the borders of nanoribbons a long-range magnetism is present. The exchange interactions are well described by a RKKY-like Hamiltonian mediated by topological states. Our results show a dominance of antiferromagnetism promoted by the topological states, preserving the spin-locked Dirac crossing states due to a global time-reversal symmetry preservation. This extended magnetic interactions mediated by massless electrons can increase the spin diffusion length being promising for fast dissipationless spintronic devices.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

RKKY interactions mediated by topological states in transition metal doped bismuthene

Lopes¹,

Vernek²,

Schmidt³

2022

Preprint

View full text Add to dashboard Cite

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“…However, metal incorporation (V, Cr, Mn, Fe, etc.) would significantly alter the electronic and magnetic properties of bismuthene . This tunable structure endows bismuthene potential for photodetector applications.…”

Section: Applications Of Xenes and Their Heterostructuresmentioning

confidence: 99%

Chemistry, Functionalization, and Applications of Recent Monoelemental Two-Dimensional Materials and Their Heterostructures

et al. 2021

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The past decades have witnessed a rapid expansion in investigations of twodimensional (2D) monoelemental materials (Xenes), which are promising materials in various fields, including applications in optoelectronic devices, biomedicine, catalysis, and energy storage. Apart from graphene and phosphorene, recently emerging 2D Xenes, specifically graphdiyne, borophene, arsenene, antimonene, bismuthene, and tellurene, have attracted considerable interest due to their unique optical, electrical, and catalytic properties, endowing them a broader range of intriguing applications. In this review, the structures and properties of these emerging Xenes are summarized based on theoretical and experimental results. The synthetic approaches for their fabrication, mainly bottom-up and top-down, are presented. Surface modification strategies are also shown. The wide applications of these emerging Xenes in nonlinear optical devices, optoelectronics, catalysis, biomedicine, and energy application are further discussed. Finally, this review concludes with an assessment of the current status, a description of existing scientific and application challenges, and a discussion of possible directions to advance this fertile field.

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“…For Ti-, Mn-, and V-doped β-antimonene, half-metallic behavior has been calculated. Similarly, Cr-doped bismuthene structure leads to a spin-polarized semiconducting state, while V-doped bismuthene can produce magnetic metal character and the Mn and Fe replacing systems result in half-metal features [187]. Additionally, V-doped systems exhibit ferromagnetism (FM) when two V atoms are far apart, but Cr-, Mn-, and Fe-doped bismuthene exhibit anti-ferromagnetism (AFM) when two impurity atoms are close together or far apart [187].…”

Section: Group Vmentioning

confidence: 99%

Recent Advances in Surface Modifications of Elemental Two-Dimensional Materials: Structures, Properties, and Applications

Chen¹,

Wang²,

Li³

et al. 2022

Preprint

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The advent of graphene opens up the research into two-dimensional (2D) material, which is considered as a revolutionary material in the future. Due to its unique geometric structure, graphene exhibits a series of exotic physical and chemical properties. Besides, single-element-based 2D materials (Xenes) have garnered tremendous interest. At present, 16 kinds of Xenes (silicene, borophene, germanene, phosphorene, tellurene, etc.) have been explored, mainly distributed in the third, fourth, fifth and sixth main groups. The current methods to prepare monolayer or few-layer 2D materials include epitaxy growth, mechanical exfoliation, and liquid phase exfoliation. Although two Xenes (aluminene and indiene) have not been synthesized due to the limitations of synthetic methods or stability of Xenes, other Xenes have been successfully realized by elaborately artificial design and synthesis. Focusing on elemental 2D materials, this review mainly summarizes the recently reported work about tuning the electronic, optical, mechanical, or chemical properties of Xenes via surface modifications achieved by controllable approaches (doping, adsorption, strain, intercalation, phase transition, etc.) to broaden the applications in various fields, including spintronics, electronics, optoelectronics, superconducting, photovoltaics, sensors, catalysis, and biomedicines. These advances in surface modification of Xenes have laid a theoretical and experimental foundation for the development of 2D materials and their practical applications in diverse fields.

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Prediction of electronic and magnetic properties in 3d-transition-metal X-doped bismuthene (X = V, Cr, Mn and Fe)

Cited by 28 publications

References 32 publications

RKKY interactions mediated by topological states in transition metal doped bismuthene

RKKY interactions mediated by topological states in transition metal doped bismuthene

Chemistry, Functionalization, and Applications of Recent Monoelemental Two-Dimensional Materials and Their Heterostructures

Recent Advances in Surface Modifications of Elemental Two-Dimensional Materials: Structures, Properties, and Applications

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Prediction of electronic and magnetic properties in 3d-transition-metal X-doped bismuthene (X = V, Cr, Mn and Fe)

Cited by 28 publications

References 32 publications

RKKY interactions mediated by topological states in transition metal doped bismuthene

RKKY interactions mediated by topological states in transition metal doped bismuthene

Chemistry, Functionalization, and Applications of Recent Monoelemental Two-Dimensional Materials and Their Heterostructures

Recent Advances in Surface Modifications of Elemental Two-Dimensional Materials: Structures, Properties, and Applications

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Prediction of electronic and magnetic properties in 3d-transition-metal X-doped bismuthene (X = V, Cr, Mn and Fe)