Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Protik, Nakib H."'
Autor:
Seemann, Wilken, Elhajhasan, Mahmoud, Themann, Julian, Dudde, Katharina, Würsch, Guillaume, Lierath, Jana, Ciers, Joachim, Haglund, Åsa, Protik, Nakib H., Romano, Giuseppe, Butté, Raphaël, Carlin, Jean-François, Grandjean, Nicolas, Callsen, Gordon
Semiconductor membranes find their widespread use in various research fields targeting medical, biological, environmental, and optical applications. Often such membranes derive their functionality from an inherent nanopatterning, which renders the de
Externí odkaz:
http://arxiv.org/abs/2410.12515
Autor:
Protik, Nakib H., Draxl, Claudia
The Tamura model is a particular type of 1$^{\text{st}}$ Born approximation of the phonon-isotope scattering problem. The expression for the mode-resolved phonon-isotope scattering rates in this model, derived in 1983, is still widely used in ab init
Externí odkaz:
http://arxiv.org/abs/2401.04473
Autor:
Elhajhasan, Mahmoud, Seemann, Wilken, Dudde, Katharina, Vaske, Daniel, Callsen, Gordon, Rousseau, Ian, Weatherley, Thomas F. K., Carlin, Jean-François, Butté, Raphaël, Grandjean, Nicolas, Protik, Nakib H., Romano, Giuseppe
We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking micro-photoluminescence ($\mu$PL) spectroscopy with Raman thermometry, we demonstrate how a
Externí odkaz:
http://arxiv.org/abs/2306.16980
Diamond is one of the most studied materials because of its unique combination of remarkable electrical, mechanical, thermal and optical properties. Using a fully self-consistent ab initio theory of coupled electron-phonon transport, we reveal anothe
Externí odkaz:
http://arxiv.org/abs/2205.12317
Autor:
Xie, Yu, Vandermause, Jonathan, Ramakers, Senja, Protik, Nakib H., Johansson, Anders, Kozinsky, Boris
Machine learning interatomic force fields are promising for combining high computational efficiency and accuracy in modeling quantum interactions and simulating atomistic dynamics. Active learning methods have been recently developed to train force f
Externí odkaz:
http://arxiv.org/abs/2203.03824
By employing ab initio Migdal-Eliashberg calculations, we predict a 4-fold enhancement of the superconducting critical temperature of MgB$_{2}$ when proximity-coupled to the topological crystal Bi$_{2}$Se$_{3}$. We support this result with calculatio
Externí odkaz:
http://arxiv.org/abs/2109.10247
elphbolt is a modern Fortran (2018 standard) code for efficiently solving the coupled electron-phonon Boltzmann transport equations from first principles. Using results from density functional and density functional perturbation theory as inputs, it
Externí odkaz:
http://arxiv.org/abs/2109.08547
Autor:
Cheng, Zhe, Lu, Weifang, Shi, Jingjing, Tanaka, Daiki, Protik, Nakib H., Wang, Shangkun, Iwaya, Motoaki, Takeuchi, Tetsuya, Kamiyama, Satoshi, Akasaki, Isamu, Amano, Hiroshi, Graham, Samuel
Publikováno v:
Materials Today Physics, 20, 100462, 2021
The minimization of electronics makes heat dissipation of related devices an increasing challenge. When the size of materials is smaller than the phonon mean free paths, phonons transport without internal scatterings and laws of diffusive thermal con
Externí odkaz:
http://arxiv.org/abs/2102.07683
Autor:
Protik, Nakib H., Kozinsky, Boris
We present a combined treatment of the non-equilibrium dynamics and transport of electrons and phonons by carrying out \textit{ab initio} calculations of the fully coupled electron and phonon Boltzmann transport equations. We find that the presence o
Externí odkaz:
http://arxiv.org/abs/2008.08722
Autor:
Protik, Nakib H., Broido, David A.
Publikováno v:
Physical Review B 101.7 (2020): 075202
We present a general coupled electron-phonon Boltzmann transport equations (BTEs) scheme designed to capture the mutual drag of the two interacting systems. By combining density functional theory based first principles calculations of anharmonic phon
Externí odkaz:
http://arxiv.org/abs/1911.02916