57 citations · 96 across the 15 of their papers we have counts for
15 papers
The Critical Role of Itinerant Contributions to Orbital Angular Momentum Relaxation and Dynamics
Andrew C. Grieder, Luis M. Canonico, Frederico Simões +2
Orbital angular momentum (OAM) is a promising degree of freedom for low-dissipation transport and magnetization control, yet its relaxation mechanisms remain controversial, with at…
Spin lifetime anisotropy in graphene induced by the SiO2 interface
Aron W. Cummings, Chunhao Guo, Andrew Grieder +5
Understanding how common dielectric substrates influence the spin transport properties of graphene is essential for advancing graphene-based spintronic technologies. Here we use a…
Graphene-based Photodetector with Engineered Hot Carrier Cooling Dynamics
Yishu Huang, Anand Nivedan, Florian Ludwig +9
Graphene has emerged as a promising material for integration into silicon photonics, owing to its ultrafast and broadband photoresponse without the need for an external bias voltag…
Dielectric control of ultrafast carrier dynamics and transport in graphene
Hai I. Wang, Xiaoyu Jia, Anand Nivedan +4
Understanding the ultrafast dynamics of photoexcited charges in graphene is essential, as the microscopic mechanisms underlying these dynamics determine many of graphene's optical,…
Semiconductor Meta-Graphene and Valleytronics
Praveen Pai, Aron W. Cummings, Alexander Cerjan +3
Nano-patterned semiconductor interfaces offer a versatile platform for creating quantum metamaterials and exploring novel electronic phenomena. In this study, we illustrate this co…
Spin Polarization driven by Itinerant Orbital Angular Momentum in van der Waals Heterostructures
Luis M. Canonico, Jose H. García, Aron W. Cummings +1
We report on the possibility of manipulating magnetic materials by using itinerant orbital angular momentum to produce out-of-plane spin polarization in van der Waals heterostructu…
Quantum transport in nitrogen-doped nanoporous graphenes
Gaetano Calogero, Isaac Alcón, Alan E. Anaya Morales +6
Bottom-up on-surface synthesized nanoporous graphenes (NPGs), realized as 2D arrays of laterally covalently bonded -conjugated graphene nanoribbons (GNRs), are a family of carbo…
Weak localization as probe of spin-orbit-induced spin-split bands in bilayer graphene proximity coupled to WSe
E. Icking, F. Wörtche, A. W. Cummings +6
Proximity coupling of bilayer graphene (BLG) to transition metal dichalcogenides (TMDs) offers a promising route to engineer gate-tunable spin-orbit coupling (SOC) while preserving…
Proximity Effects Between the Graphene Quasicrystal and Magic-Angle Twisted Bilayer Graphene
Pedro Alcázar Guerrero, Viet-Hung Nguyen, Aron W. Cummings +2
We present a numerical study of three-layer graphene heterostructures in which the layers are twisted by the magic angle (1.1) or by to form a graphe…
Upper limit of spin relaxation in suspended graphene
Aron W. Cummings, Simon M. -M. Dubois, Pedro Alcázar Guerrero +2
We use a combination of molecular dynamics and quantum transport simulations to investigate the upper limit of spin transport in suspended graphene. We find that thermally-induced…
Robust quantum engineering of current flow in carbon nanostructures at room temperature
Gaetano Calogero, Isaac Alcón, Onurcan Kaya +4
Bottom-up on-surface synthesis enables the fabrication of carbon nanostructures with atomic precision. Good examples are graphene nanoribbons (GNRs), 1D conjugated polymers, and na…
Real-Time Out-of-Equilibrium Quantum Dynamics in Disordered Materials
Luis M. Canonico, Stephan Roche, Aron W. Cummings
We report a linear-scaling numerical method for exploring nonequilibrium electron dynamics in systems of arbitrary complexity. Based on the Chebyshev expansion of the time evolutio…
Disorder-Induced Delocalization in Magic-Angle Twisted Bilayer Graphene
Pedro Alcázar Guerrero, Viet-Hung Nguyen, Jorge Martínez Romeral +4
Flat bands in moiré systems are exciting new playgrounds for the generation and study of exotic many-body physics phenomena in low-dimensional materials. Such physics is attributed…
Proximity-Induced Spin-Orbit Coupling in Graphene-BiSbTeSe Heterostructures
S. Jafarpisheh, A. W. Cummings, K. Watanabe +3
The weak intrinsic spin-orbit coupling in graphene can be greatly enhanced by proximity coupling. Here we report on the proximity-induced spin-orbit coupling in graphene transferre…
Spin precession in anisotropic media
B. Raes, A. W. Cummings, F. Bonell +4
We generalize the diffusive model for spin injection and detection in nonlocal spin structures to account for spin precession under an applied magnetic field in an anisotropic medi…