240 citations · 431 across the 7 of their papers we have counts for
7 papers
Shaping terahertz waves using anisotropic shear modes in a van der Waals mineral
Nicolas M. Kawahala, Daniel A. Matos, Raphaela de Oliveira +4
Naturally occurring van der Waals (vdW) materials are currently attracting significant interest due to their potential as low-cost sources of two-dimensional materials. Valuable in…
Phyllosilicates as earth-abundant layered materials for electronics and optoelectronics: Prospects and challenges in their ultrathin limit
Ingrid D. Barcelos, Raphaela de Oliveira, Gabriel R. Schleder +10
Phyllosilicate minerals are an emerging class of naturally occurring layered insulators with large bandgap energy that have gained attention from the scientific community. This cla…
Raman and Far Infrared Synchrotron Nanospectroscopy of Layered Crystalline Talc: Vibrational Properties, Interlayer Coupling and Symmetry Crossover
Raphael Longuinhos, Alisson R. Cadore, Hans A. Bechtel +4
Talc is an insulating layered material that is stable at ambient conditions and has high-quality basal cleavage, which is a major advantage for its use in van der Waals heterostruc…
Exploring the structural and optoelectronic properties of natural insulating phlogopite in van der Waals heterostructures
Alisson R. Cadore, Raphaela de Oliveira, Raphael L. M. Lobato +11
Naturally occurring van der Waals crystals have brought unprecedented interest to nanomaterial researchers in recent years. So far, more than 1800 layered materials (LMs) have been…
Structural analysis of polycrystalline graphene systems by Raman spectroscopy
J. Ribeiro-Soares, M. E. Oliveros, C. Garin +12
A theoretical model supported by experimental results explains the dependence of the Raman scattering signal on the evolution of structural parameters along the amorphization traje…
Group theory for structural analysis and lattice vibrations in phosphorene systems
J. Ribeiro-Soares, R. M. Almeida, L. G. Cançado +2
Group theory analysis for two-dimensional elemental systems related to phosphorene is presented, including (i) graphene, silicene, germanene and stanene, (ii) dependence on the num…
Group Theory analysis of phonons in two-dimensional Transition Metal Dichalcogenides
J. Ribeiro-Soares, R. M. Almeida, E. B. Barros +4
Transition metal dichalcogenides (TMDCs) have emerged as a new two dimensional materials field since the monolayer and few-layer limits show different properties when compared to e…