Topology and applications of 2D Dirac and semi-Dirac materials
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Sayan Mondal
Abstract
Two dimensional (2D) Dirac materials, such as graphene, hold promise of being useful in energy storage, and thus have merged as candidates that are worth exploring through the last couple of decades. In this chapter, we mainly focus on three aspects of these materials, namely, the electronic properties, via computing the band structure, the topological properties through the topological invariants, and the prospects of these 2D materials for spintronic applications, via studying the spin polarized transport. All of these properties are correlated, and hence warrant a thorough discussion. Further, in order to ascertain whether a band deformation induces noticeable effects on the electronic, topological and spintronic properties, we have considered a 2D semi-Dirac system, that does not have Dirac cones, however the conduction and the valence bands touch at an intermediate to the Dirac points in the Brillouin zone. From our studies, we infer that the behaviour of these semi-Dirac systems is quite distinct from their Dirac counterpart. Finally, in order to have noticeable spin polarized transport, we use heavy adatoms (such as, Au) on the graphene matrix which enhances the spin–orbit coupling, and thereby propose a mechanism that will ramify on the spintronic applications.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: None declared.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Reviews
- Topology and applications of 2D Dirac and semi-Dirac materials
- Landscape ecological modeling to identify ecologically significant regions in Tumkur district, Karnataka
- Surfactants-surface active agents behind sustainable living
- Ecological footprint of poultry production and effect of environment on poultry genes
- Fluoride in water, health implications and plant-based remediation strategies
- Poultry nutrition
- Synthesis of N-containing heterocycles in water
- Inorganic nanoparticles promoted synthesis of heterocycles
- The role of analytical chemistry in poultry science
- Antibiotics in avian care and husbandry-status and alternative antimicrobials
- Removal of heavy metals from wastewater using synthetic chelating agents
- Azadirachtin in the aquatic environment: Fate and effects on non-target fauna
- Intensification of bioprocesses with filamentous microorganisms
- The science of genetically modified poultry
- Emerging in ovo technologies in poultry production and the re-discovered chicken model in preclinical research
- The Cambridge structural database (CSD): important resources for teaching concepts in structural chemistry and intermolecular interactions
- Microbial production of lactic acid using organic wastes as low-cost substrates
- Oxalic acid: recent developments for cost-effective microbial production
- Immobilization of α-amylase from Aspergillus fumigatus using adsorption method onto zeolite
- A comparative assessment of potentially harmful metals in the Lagos Lagoon and Ogun river catchment
- Formulation of a herbal topical cream against Tinea capitis using flavonoids glycosides from Dicerocaryum senecioides and Diospyros mespiliformis
- Biodegradable polymers – research and applications
- Adsorption of trichloroacetic acid from drinking water using polyethylene terephthalate waste carbon and periwinkle shells–based chitosan
- The vital use of isocyanide-based multicomponent reactions (MCR) in chemical synthesis
- Pine bark crosslinked to cyclodextrin for the adsorption of 2-nitrophenol from an aqueous solution
- Computational study of propene selectivity and yield in the dehydrogenation of propane via process simulation approach
- A mini review on the prospects of Fagara zanthoxyloides extract based composites: a remedy for COVID-19 and associated replica?
- Physicochemical assessment and insilico studies on the interaction of 5-HT2c receptor with herbal medication bioactive compounds used in the treatment of premature ejaculation
- Horse chestnut thermoplastic starch nanocomposite films reinforced with nanocellulose
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