Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Habib, Adela"'
Autor:
Quinton, Joshua, Fadel, Mayada, Xu, Junqing, Habib, Adela, Chandra, Mani, Ping, Yuan, Sundararaman, Ravishankar
Spin relaxation of electrons in materials involve both reversible dephasing and irreversible decoherence processes. Their interplay leads to a complex dependence of spin relaxation times on the direction and magnitude of magnetic fields, relevant for
Externí odkaz:
http://arxiv.org/abs/2411.18608
Density matrix perturbation theory based on recursive Fermi-operator expansions provides a computationally efficient framework for time-independent response calculations in quantum chemistry and materials science. From a perturbation in the Hamiltoni
Externí odkaz:
http://arxiv.org/abs/2409.17033
In recent years, a new kind of accelerated hardware has gained popularity in the Artificial Intelligence (AI) and Machine Learning (ML) communities which enables extremely high-performance tensor contractions in reduced precision for deep neural netw
Externí odkaz:
http://arxiv.org/abs/2404.19163
Highly energetic electron-hole pairs (hot carriers) formed from plasmon decay in metallic nanostructures promise sustainable pathways for energy-harvesting devices. However, efficient collection before thermalization remains an obstacle for realizati
Externí odkaz:
http://arxiv.org/abs/2303.04318
Through First-Principles real-time Density-Matrix (FPDM) dynamics simulations, we investigate spin relaxation due to electron-phonon and electron-impurity scatterings with spin-orbit coupling in two-dimensional Dirac materials - silicene and germanen
Externí odkaz:
http://arxiv.org/abs/2110.01128
Publikováno v:
Phys. Rev. B 105, 115122 (2022)
Electrons in graphene are theoretically expected to retain spin states much longer than most materials, making graphene a promising platform for spintronics and quantum information technologies. Here, we use first-principles density-matrix (FPDM) dyn
Externí odkaz:
http://arxiv.org/abs/2012.11550
Spin relaxation and decoherence is at the heart of spintronics and spin-based quantum information science. Currently, theoretical approaches that can accurately predict spin relaxation of general solids including necessary scattering pathways and cap
Externí odkaz:
http://arxiv.org/abs/2012.08711
Designing new quantum materials with long-lived electron spin states urgently requires a general theoretical formalism and computational technique to reliably predict intrinsic spin relaxation times. We present a new, accurate and universal first-pri
Externí odkaz:
http://arxiv.org/abs/1910.14198
Autor:
Tagliabue, Giulia, DuChene, Joseph S., Abdellah, Mohamed, Habib, Adela, Hattori, Yocefu, Zheng, Kaibo, Canton, Sophie E., Gosztola, David J., Cheng, Wen-Hui, Sundararaman, Ravishankar, Sa, Jacinto, Atwater, Harry A.
Harvesting non-equilibrium hot carriers from photo-excited metal nanoparticles has enabled plasmon-driven photochemical transformations and tunable photodetection with resonant nanoantennas. Despite numerous studies on the ultrafast dynamics of hot e
Externí odkaz:
http://arxiv.org/abs/1810.04238
Publikováno v:
J. Opt. 10, 064001 (2018)
Extraction of non-equilibrium hot carriers generated by plasmon decay in metallic nanostructures is an increasingly exciting prospect for utilizing plasmonic losses, but the search for optimum plasmonic materials with long-lived carriers is ongoing.
Externí odkaz:
http://arxiv.org/abs/1802.00727