Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Miwa, Roberto H."'
Publikováno v:
Phys. Rev. B 110, 035111 (2024)
The discovery of the quantum spin Hall effect led to the exploration of the electronic transport for spintronic devices. Here, we theoretically investigated the electronic conductance in large-gap realistic quantum spin Hall system, Pt$_2$HgSe$_3$ na
Externí odkaz:
http://arxiv.org/abs/2405.06861
Publikováno v:
J. Phys. Chem. C 127, 17556 (2023)
Currently, solid interfaces composed of two-dimensional materials (2D) in contact with metal surfaces (m-surf) have been the subject of intense research, where the borophene bilayer (BBL) has been considered a prominent material for the development o
Externí odkaz:
http://arxiv.org/abs/2305.06318
Publikováno v:
Journal of Physics: Condensed Matter 36, 185701 (2024)
In this work we predict a family of noncentrosymmetric two-dimensional (2D) Weyl semimetals composed by porous Ge and SiGe structures. These systems are energetically stable graphenylene-like structures with a buckling, spontaneously breaking the inv
Externí odkaz:
http://arxiv.org/abs/2305.05756
Heterostructures made of stacked 2D materials with different electronic properties are studied for their potential in creating multifunctional devices. Graphene (G) and hexagonal boron nitride (h-BN) van der Waals (vdW) systems have been extensively
Externí odkaz:
http://arxiv.org/abs/2303.08191
Autor:
Silvestre, Gustavo H., de Lima, Felipe Crasto, Bernardes, Juliana S., Fazzio, Adalberto, Miwa, Roberto H.
Publikováno v:
Phys. Chem. Chem. Phys., 2023,25, 1161-1168
The development of electronic devices based on the functionalization of (nano)cellulose platforms relies upon an atomistic understanding of the structural, and electronic properties of the combined system, cellulose/functional element. In this work,
Externí odkaz:
http://arxiv.org/abs/2208.11742
Publikováno v:
In Applied Surface Science 30 July 2024 662
Autor:
Sharan, Abhishek, de Lima, Felipe Crasto, Khalid, Shoaib, Miwa, Roberto H., Janotti, Anderson
Using first-principles electronic structure calculations, we show that ferromagnetic Heusler compounds Co$_2$MnX (X= Si, Ge, Sn) present non-trivial topological characteristics and belong to the category of Weyl semimetals. These materials exhibit tw
Externí odkaz:
http://arxiv.org/abs/2111.14135
Autor:
Petry, Romana, Silvestre, Gustavo, Focassio, Bruno, de Lima, F. Crasto, Miwa, Roberto H., Fazzio, Adalberto
Publikováno v:
Langmuir 38, 1124 (2022)
Understanding the role of microscopic attributes in nanocomposites allows for a controlled and, therefore, acceleration in experimental system designs. In this work, we extracted the relevant parameters controlling the graphene oxide binding strength
Externí odkaz:
http://arxiv.org/abs/2107.01040
Based on first-principles calculations we performed a systematic study of the energetic stability, structural characterization, and electronic properties of the fully oxidized $A_{2}B$, electrenes, with the following combinations, (i) $A$=Ca, Sr, and
Externí odkaz:
http://arxiv.org/abs/2106.09102
Autor:
de Lima, Felipe Crasto, Schleder, Gabriel R., Junior, João B. Souza, Souza, Flavio L., Destro, Fabrício B., Miwa, Roberto H., Leite, Edson R., Fazzio, Adalberto
Publikováno v:
Appl. Phys. Lett. 118, 201602 (2021)
Understanding the effects of atomic structure modification in hematite photoanodes is essential for the rational design of high-efficiency functionalizations. Recently it was found that interface modification with Sn/Sb segregates considerably increa
Externí odkaz:
http://arxiv.org/abs/2105.00993