332 citations · 454 across the 12 of their papers we have counts for
12 papers
Magnetically tunable exciton valley coherence in monolayer WS mediated by the electron-hole exchange and exciton-phonon interactions
Kang Lan, Shijie Xie, Jiyong Fu +1
We develop a model, which incorporates both intra- and intervalley scatterings to master equation, to explore exciton valley coherence in monolayer WS subjected to magnetic fie…
Persistent entanglement of valley exciton qubits in transition metal dichalcogenides integrated into a bimodal optical cavity
Borges H. S., Celso A. N. Júnior, David S. Brandão +5
We report dissipative dynamics of two valley excitons residing in the and -valleys of bare WSe monolayer and the one being integrated into a bimodal optical cavit…
Vacancy-Engineered Flat-Band Superconductivity in Holey Graphene
Matheus S. M. de Sousa, Fujun Liu, Fanyao Qu +1
A bipartite lattice with chiral symmetry is known to host zero energy flat bands if the numbers of the two sublattices are different. We demonstrate that this mechanism of producin…
Symmetry-enforced nodal lines in the band structures of vacancy-engineered graphene
Matheus S. M. de Sousa, Fujun Liu, Mariana Malard +2
We elaborate that single-layer graphene with periodic vacancies can have a band structure containing nodal lines or nodal loops, opening the possibility of graphene-based electroni…
Less is more: Vacancy-engineered nodal-line semimetals
Fujun Liu, Fanyao Qu, Igor Zutic +1
A nodal-line semimetal phase which is enforced by the symmetries of the material is interesting from fundamental and application standpoints. We demonstrate that such a phase of ma…
Controlling valley splitting and Polarization of dark- and bi-excitons in monolayer WS by a tilted magnetic field
Fanyao Qu, Helena Bragança, Railson Vasconcelos +3
We developed a comprehensive theoretical framework focusing on many-body effects of exciton species in monolayer WS, including bright and dark excitons, and intra- and inter-va…
Topological nature of in-gap bound states in disordered large-gap monolayer transition metal dichalcogenides
Fanyao Qu, L. Villegas-Lelovsky, G. S. Diniz
We propose a physical model based on disordered (a hole punched inside a material) monolayer transition metal dichalcogenides (TMDs) to demonstrate a large-gap quantum valley Hall…
Exciton band structure of monolayer MoS2
Fengcheng Wu, Fanyao Qu, A. H. MacDonald
We address the properties of excitons in monolayer MoS from a theoretical point of view, showing that low-energy excitonic states occur both at the Brillouin zone center and at…
Zero-field and time-reserval-symmetry-broken topological phase transitions in graphene
Marcos Rafael Guassi, Ginetom Souza Diniz, Nancy Sandler +1
We propose a quantum electronic device based on strained graphene nanoribbon. Mechanical strain, internal exchange field and spin-orbit couplings (SOCs) have been exploited as prin…
Controllable Spin-Charge Transport in Strained Graphene Nanoribbon Devices
Ginetom S. Diniz, Marcos R. Guassi, Fanyao Qu
We theoretically investigate the spin-charge transport in two-terminal device of graphene nanoribbons in the presence of an uniform uniaxial strain, spin-orbit coupling, exchange f…
Engineering the Quantum Anomalous Hall Effect in Graphene with Uniaxial Strains
G. S. Diniz, M. R. Guassi, F. Qu
We theoretically investigate the manipulation of the quantum anomalous Hall effect (QAHE) in graphene by means of the uniaxial strain. The values of Chern number and Hall conductan…
Kondo screening regimes of a quantum dot with a single Mn ion
E. vernek, Fanyao Qu, F. M. Souza +2
We study the Kondo and transport properties of a quantum dot with a single magnetic Mn ion connected to metallic leads. By employing a numerical renormalization group technique we…