1.2k citations · 6.3k across the 31 of their papers we have counts for
31 papers
Edge-Driven Phase Transitions in 2D Ice
Suchit Negi, Alexandra Carvalho, Maxim Trushin +1
2D water, confined by atomically flat layered materials, may transit into various crystalline phases even at room temperature. However, to gain full control over the crystalline st…
Two-dimensional non-linear hydrodynamics and nanofluidics
Maxim Trushin, Alexandra Carvalho, A. H. Castro Neto
A water monolayer squeezed between two solid planes experiences strong out-of-plane confinement effects while expanding freely within the plane. As a consequence, the transport of…
Evidence of Spin Frustration in Vanadium Diselenide Monolayer Magnet
Ping Kwan Johnny Wong, Wen Zhang, Fabio Bussolotti +22
Monolayer VSe2, featuring both charge density wave and magnetism phenomena, represents a unique van der Waals magnet in the family of metallic two-dimensional transition-metal dich…
A general approach for the synthesis of two-dimensional binary compounds
Abhay Shivayogimath, Joachim Dahl Thomsen, David M. A. Mackenzie +7
Only a few of the vast range of potential two-dimensional materials have been isolated or synthesised to date. Typically, 2D materials are discovered by mechanically exfoliating na…
Excitonic mass gap in uniaxially strained graphene
Anand Sharma, Valeri N. Kotov, Antonio H. Castro Neto
We study the conditions for spontaneously generating an excitonic mass gap due to Coulomb interactions between anisotropic Dirac fermions in uniaxially strained graphene. The mass…
Strongly bound Mott-Wannier Excitons in GeS and GeSe monolayers
Lidia C. Gomes, P. E. Trevisanutto, A. Carvalho +2
The excitonic spectra of single layer GeS and GeSe are predicted by ab initio GW-Bethe Salpeter equation calculations. G 0 W 0 calculations for the band structures find a fundament…
Controlling many-body states by the electric-field effect in a two-dimensional material
Linjun Li, Eoin C. T. O Farrell, Kianping Loh +3
To understand complex physics of a system with strong electron electron interactions, it is ideal to control and monitor its properties while tuning an external electric field appl…
Edge phonons in black phosphorus
H. B. Ribeiro, C. E. P. Villegas, D. A. Bahamon +6
Exfoliated black phosphorus has recently emerged as a new two-dimensional crystal that, due to its peculiar and anisotropic crystalline and electronic band structures, may have pot…
Vacancies and oxidation of 2D group-IV monochalcogenides
Lídia C. Gomes, A. Carvalho, A. H. Castro Neto
Point defects in the binary group-IV monochalcogenide monolayers of SnS, SnSe, GeS, GeSe are investigated using density-functional-theory calculations. Several stable configuration…
Magnetic effects in sulfur-decorated graphene
Choongyu Hwang, Shane A. Cybart, S. J. Shin +13
The interaction between two different materials can present novel phenomena that are quite different from the physical properties observed when each material stands alone. Strong e…
Enhanced piezoelectricity and modified dielectric screening of 2-D group-IV monochalcogenides
Lídia C. Gomes, A. Carvalho, A. H. Castro Neto
We use first principles calculations to investigate the lattice properties of group-IV monochalcogenides. These include static dielectric permittivity, elastic and piezoelectric te…
Evidence for Fast Interlayer Energy Transfer in MoSe2/WS2 Heterostructures
Daichi Kozawa, Alexandra Carvalho, Ivan Verzhbitskiy +6
Strongly bound excitons confined in two-dimensional (2D) semiconductors are dipoles with a perfect in-plane orientation. In a vertical stack of semiconducting 2D crystals, such in-…
Valleytronics in Tin (II) Sulfide
A. S. Rodin, L. C. Gomes, A. Carvalho +1
Tin (II) sulfide (SnS) is a layered mineral found in nature. In this paper, we study the two-dimensional form of this material using a combination of \emph{ab initio} calculation a…
Tunable room-temperature ferromagnet using an iron-oxide and graphene oxide nanocomposite
Aigu L. Lin, J. N. B. Rodrigues, Chenliang Su +7
Magnetic materials have found wide application ranging from electronics and memories to medicine. Essential to these advances is the control of the magnetic order. To date, most ro…
Optical conductivity renormalization of graphene on SrTiO due to resonant excitonic effects mediated by Ti 3\textit{d} orbitals
Pranjal Kumar Gogoi, Paolo E. Trevisanutto, Ming Yang +10
We present evidence of a drastic renormalization of the optical conductivity of graphene on SrTiO resulting in almost full transparency in the ultraviolet region. These finding…
Electrical characterization of fully encapsulated ultra thin black phosphorus-based heterostructures with graphene contacts
Ahmet Avsar, Ivan J. Vera-Marun, Tan Jun You +4
The presence of finite bandgap and high mobility in semiconductor few-layer black phosphorus offers an attractive prospect for using this material in future two-dimensional electro…
Spin-Orbit Proximity Effect in Graphene
Ahmet Avsar, Jun You Tan, Jayakumar Balakrishnan +9
The development of a spintronics device relies on efficient generation of spin polarized currents and their electric field controlled manipulation. While observation of exceptional…
Direct dry transfer of chemical vapor deposition graphene to polymeric substrates
Guilhermino J. M. Fechine, Inigo Martin-Fernandez, George Yiapanis +5
We demonstrate the direct dry transfer of large area Chemical Vapor Deposition graphene to several polymers (low density polyethylene, high density polyethylene, polystyrene, polyl…
Infrared nano-spectroscopy and imaging of collective superfluid excitations in conventional and high-temperature superconductors
H. T. Stinson, J. S. Wu, B. Y. Jiang +8
We investigate near-field infrared spectroscopy and superfluid polariton imaging experiments on conventional and unconventional superconductors. Our modeling shows that near-field…
Electronic transport in graphene-based heterostructures
J. Y. Tan, A. Avsar, J. Balakrishnan +8
While boron nitride (BN) substrates have been utilized to achieve high electronic mobilities in graphene field effect transistors, it is unclear how other layered two dimensional (…
Scattering theory of spin-orbit active adatoms on graphene
Alexandre Pachoud, Aires Ferreira, B. Özyilmaz +1
The scattering of two-dimensional massless Dirac fermions from local spin-orbit interactions with an origin in dilute concentrations of physisorbed atomic species on graphene is th…
Electric field effect in ultrathin black phosphorus
Steven P. Koenig, Rostislav A. Doganov, Hennrik Schmidt +2
Black phosphorus exhibits a layered structure similar to graphene, allowing mechanical exfoliation of ultrathin single crystals. Here we demonstrate few-layer black phosphorus fiel…
Van der Waals forces and electron-electron interactions in two strained graphene layers
Anand Sharma, Peter Harnish, Alexander Sylvester +2
We evaluate the van der Waals (vdW) interaction energy at zero temperature between two undoped strained graphene layers separated by a finite distance. We consider the following th…
Photocarrier relaxation in two-dimensional semiconductors
Daichi Kozawa, Rajeev Kumar, Alexandra Carvalho +8
Two-dimensional (2D) crystals of semiconducting transition metal dichalcogenides (TMD) absorb a large fraction of incident photons in the visible frequencies despite being atomical…