16 citations · 16 across the 10 of their papers we have counts for
10 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…
Photogalvanic currents from first-principles real-time density-matrix dynamics
Junting Yu, Andrew Grieder, Jacopo Simoni +3
The photogalvanic effect is the generation of a second-order direct current by illumination of a non-centrosymmetric material. In this work, we develop a first-principles real-time…
Chirality-Induced Spin Selectivity: Nonlinear Spin Response from Electron-Phonon Scattering
Mayank Gupta, Andrew Grieder, Mayada Fadel +4
Chirality-induced spin selectivity (CISS) generates spin-polarized currents in nonmagnetic materials from structural chirality alone, yet its microscopic origin remains debated. Us…
Spin non-Collinear Real-Time Time-Dependent Density-Functional Theory and Implementation in the Modern GPU-Accelerated INQ code
Jacopo Simoni, Xavier Andrade, Wuzhang Fang +4
Time-dependent density functional theory (TDDFT) is a theory that describes the time evolution of quantum mechanical many-electron systems under the influence of external time-depe…
Relation of Continuous Chirality Measure to Spin and Orbital Polarization, and Chiroptical Properties in Solids
Andrew Grieder, Shihao Tu, Yuan Ping
Chirality introduces intriguing topological, electronic, and spin-optronic properties to molecules and solids. In this work, we provide a quantitative metric for the degree of chir…
Carrier Localization and Spontaneous Formation of Two-Dimensional Polarization Domain in Halide Perovskites
Andrew Grieder, Marcos Calegari Andrade, Hiroyuki Takenaka +3
Halide perovskites are known for their rich phase diagram and superior performance in diverse optoelectronics applications. The latter property is often attributed to the long elec…
Spin Relaxation and Diffusion in Monolayer 1T'-WTe from First-Principles
Junqing Xu, Hiroyuki Takenaka, Andrew Grieder +3
Understanding spin relaxation in topological systems such as quantum spin-hall (QSH) insulator is critical for realizing coherent transport at high temperature. WTe, known as…
Electrically Switchable Circular Photogalvanic Effect in Methylammonium Lead Iodide Microcrystals
Yuqing Zhu, Ziyi Song, Rodrigo Becerra Silva +6
We investigate the circular photogalvanic effect (CPGE) in single-crystalline methylammonium lead iodide microcrystals under a static electric field. The external electric field ca…
Circular Dichroism of Crystals from First Principles
Christian Multunas, Andrew Grieder, Junqing Xu +2
Chiral crystals show promise for spintronic technologies on account of their high spin selectivity, which has led to significant recent interest in quantitative characterization an…