Strain engineering the topological type-II Dirac semimetal NiTe2 (2021)
- Authors:
- USP affiliated authors: MACHADO, ANTONIO JEFFERSON DA SILVA - EEL ; ELENO, LUIZ TADEU FERNANDES - EEL ; MARTINS, GABRIELLE WEBER - EEL ; MANESCO, ANTONIO LUCAS RIGOTTI - EEL ; FERREIRA, PEDRO NUNES - EEL ; CORRÊA, LUCAS EDUARDO - EEL
- Unidade: EEL
- DOI: 10.1103/physrevb.103.125134
- Subjects: ELASTICIDADE DAS ESTRUTURAS; SUPERCONDUTIVIDADE; FÍSICA DA MATÉRIA CONDENSADA; ESTRUTURA ELETRÔNICA
- Keywords: Elasticity; Electronic structure; Transition metal dichalcogenides
- Agências de fomento:
- Language: Inglês
- Abstract: In the present work, we investigate the electronic and elastic properties in equilibrium and under strain of the type-II Dirac semimetal NiTe2 using density functional theory. Our results demonstrate the tunability of Dirac nodes' energy and momentum with strain and that it is possible to bring them closer to the Fermi level, while other metallic bands are suppressed. We also derive a minimal 4-band effective model for the Dirac cones, which accounts for the aforementioned strain effects by means of lattice regularization, providing an inexpensive way for further theoretical investigations and easy comparison with experiments. On an equal footing, we propose the static control of the electronic structure by intercalating alkali species into the van der Waals gap, resulting in the same effects obtained by strain engineering and removing the requirement of in situ strain. Finally, evaluating the wave-function's symmetry evolution as the lattice is deformed, we discuss possible consequences, such as Liftshitz transitions and the coexistence of type-I and type-II Dirac cones, thus motivating future investigations.
- Imprenta:
- Source:
- Título: Physical review B
- ISSN: 2469-9950
- Volume/Número/Paginação/Ano: v.103, p.1-13, 2021
- Este periódico é de acesso aberto
- Este artigo NÃO é de acesso aberto
-
ABNT
FERREIRA, Pedro Nunes et al. Strain engineering the topological type-II Dirac semimetal NiTe2. Physical review B, v. 103, p. 1-13, 2021Tradução . . Disponível em: https://doi.org/10.1103/physrevb.103.125134. Acesso em: 13 fev. 2026. -
APA
Ferreira, P. N., Manesco, A. L. R., Dorini, T. T., Correa, L. E., Weber, G., Machado, A. J. da S., & Eleno, L. T. F. (2021). Strain engineering the topological type-II Dirac semimetal NiTe2. Physical review B, 103, 1-13. doi:10.1103/physrevb.103.125134 -
NLM
Ferreira PN, Manesco ALR, Dorini TT, Correa LE, Weber G, Machado AJ da S, Eleno LTF. Strain engineering the topological type-II Dirac semimetal NiTe2 [Internet]. Physical review B. 2021 ;103 1-13.[citado 2026 fev. 13 ] Available from: https://doi.org/10.1103/physrevb.103.125134 -
Vancouver
Ferreira PN, Manesco ALR, Dorini TT, Correa LE, Weber G, Machado AJ da S, Eleno LTF. Strain engineering the topological type-II Dirac semimetal NiTe2 [Internet]. Physical review B. 2021 ;103 1-13.[citado 2026 fev. 13 ] Available from: https://doi.org/10.1103/physrevb.103.125134 - Two-band superconductivity with unconventional pairing symmetry in HfV2Ga4
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Informações sobre o DOI: 10.1103/physrevb.103.125134 (Fonte: oaDOI API)
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