121 citations · 1.3k across the 46 of their papers we have counts for
46 papers
Coulomb blockade-like transport and enhanced memory in organic transistors embedded with sub-nm Pt nanoparticles for neuromorphic computing
Arash Ghobadi, Thomas B. Kallaos, Abhi Abhijeet +5
Organic transistors are playing an increasingly important role for neuromorphic applications. However, devices that rely solely on ferroelectric switching or on interface traps for…
Magnetization dynamics with time-dependent spin-density functional theory: significance of exchange-correlation torques
Daniel Hill, Justin Shotton, Carsten A. Ullrich
In spin-density-functional theory (SDFT) for noncollinear magnetic materials, the Kohn-Sham system features exchange-correlation (xc) scalar potentials and magnetic fields. The sig…
Exchange torque in noncollinear spin density functional theory with a semilocal exchange functional
Nicolas Tancogne-Dejean, Angel Rubio, Carsten A. Ullrich
We present a semilocal exchange-correlation energy functional for noncollinear spin density functional theory based on short-range expansions of the spin-resolved exchange hole and…
Temperature-dependent dielectric function of intrinsic silicon: Analytic models and atom-surface potentials
C. Moore, C. M. Adhikari, T. Das +3
The optical properties of monocrystalline, intrinsic silicon are of interest for technological applications as well as fundamental studies of atom-surface interactions. For an enha…
Spin waves in doped graphene: a time-dependent spin-density-functional approach to collective excitations in paramagnetic two-dimensional Dirac fermion gases
Matthew J. Anderson, Florent Perez, Carsten A. Ullrich
In spin-polarized itinerant electron systems, collective spin-wave modes arise from dynamical exchange and correlation (xc) effects. We here consider spin waves in doped paramagnet…
Real-time exciton dynamics with time-dependent density-functional theory
Jiuyu Sun, Cheng-Wei Lee, Alina Kononov +2
Linear-response time-dependent density-functional theory (TDDFT) can describe excitonic features in the optical spectra of insulators and semiconductors, using exchange-correlation…