Zobrazeno 1 - 10
of 4 543
pro vyhledávání: '"Manolescu, A"'
Autor:
Gudmundsson, Vidar, Mughnetsyan, Vram, Goan, Hsi-Sheng, Chai, Jeng-Da, Abdullah, Nzar Rauf, Tang, Chi-Shung, Moldoveanu, Valeriu, Manolescu, Andrei
We model a spin-phase transition in a two-dimensional square array, or a lateral superlattice, of quantum rings in an external perpendicular homogeneous magnetic field. The electron system is placed in a circular cylindrical far-infrared photon cavit
Externí odkaz:
http://arxiv.org/abs/2411.13176
Autor:
Gassmann, Loïc, Manolescu, Ioan
By the FKG inequality for FK-percolation, the probability of the alternating two-arm event is smaller than the product of the probabilities of having a primal arm and a dual arm, respectively. In this paper, we improve this inequality by a polynomial
Externí odkaz:
http://arxiv.org/abs/2410.23013
Autor:
Gudmundsson, Vidar, Mughnetsyan, Vram, Goan, Hsi-Sheng, Chai, Jeng-Da, Abdullah, Nzar Rauf, Tang, Chi-Shung, Moldoveanu, Valeriu, Manolescu, Andrei
Publikováno v:
Physical Review B 110, 205301 (2024)
We employ a ``real-time'' excitation scheme to calculate the excitation spectra of a two-dimensional electron system in a square array of quantum dots placed in a circular cylindrical far-infrared photon cavity subjected to a perpendicular homogeneou
Externí odkaz:
http://arxiv.org/abs/2409.09936
Autor:
Filipoiu, Nicolae, Cuzminschi, Marina, Pantis-Simut, Calin-Andrei, Torfason, Kristinn, Brophy, Rachel Elizabeth, Manolescu, Andrei, Patru, Roxana E., Besleaga, Cristina, Stan, George E., Pintilie, Ioana, Nemnes, George Alexandru
Optimizing the interfaces in perovskite solar cells (PSCs) is essential for enhancing their performance, improving their stability, and making them commercially viable for large-scale deployment in solar energy harvesting applications. Point defects,
Externí odkaz:
http://arxiv.org/abs/2406.19594
Autor:
Mirea, Anca G., Vlaicu, Ioana D., Derbali, Sarah, Neatu, Florentina, Tomulescu, Andrei G., Besleaga, Cristina, Enculescu, Monica, Kuncser, Andrei C., Iacoban, Alexandra C., Filipoiu, Nicolae, Cuzminschi, Marina, Nemnes, George A., Manolescu, Andrei, Florea, Mihaela, Pintilie, Ioana
Herein we present a comparative study among different mesoporous electron transporter layers (ETLs), namely nanometric m-TiO2, m-SnO2 and m-SnO2 quantum dots (QDs), deposited by spray coating method. The experimental data correlated with the photovol
Externí odkaz:
http://arxiv.org/abs/2406.18261
Autor:
Miranda, Ivan P., Kwiatkowski, Grzegorz J., Holmqvist, Cecilia M., Canali, Carlo M., Lobanov, Igor S., Uzdin, Valery M., Manolescu, Andrei, Bessarab, Pavel F., Erlingsson, Sigurður I.
We present an optimal field-free protocol for current-induced switching of a perpendicularly magnetized ferromagnetic insulator nanoelement on the surface of a topological insulator. The time dependence of in-plane components of the surface current,
Externí odkaz:
http://arxiv.org/abs/2406.09287
Autor:
Sultan, M. T., Dumitru, A., Fakhri, E. A., Brophy, R. E., Ingvarsson, S. T., Manolescu, A., Svavarsson, H. G.
In this study we investigate novel hybrid structure of silicon nanowires (SiNWs) coated with PANI:metaloxide(MO$_x$) nanoparticles i.e., WO$_3$ and TiO$_2$. The SiNWs were fabricated using MACE, whereas PANI:MO$_x$ were deposited using chemical oxida
Externí odkaz:
http://arxiv.org/abs/2406.06779
The surface of a three dimensional topological insulator (TI) hosts surface states whose properties are determined by a Dirac-like equation. The electronic system on the surface of TI nanowires with polygonal cross-sectional shape adopts the correspo
Externí odkaz:
http://arxiv.org/abs/2405.03380
Autor:
Gudmundsson, Vidar, Mughnetsyan, Vram, Goan, Hsi-Sheng, Chai, Jeng-Da, Abdullah, Nzar Rauf, Tang, Chi-Shung, Moldoveanu, Valeriu, Manolescu, Andrei
Publikováno v:
Phys. Rev. B 109, 235306 (2024)
We model the equilibrium properties of a two-dimensional electron gas in a square lateral superlattice of quantum dots in a GaAs heterostructure subject to an external homogeneous perpendicular magnetic field and a far-infrared circular cylindrical p
Externí odkaz:
http://arxiv.org/abs/2403.10027
Autor:
Brophy, R. E., Kateb, M., Ghitiu, I., Filipoiu, N., Torfason, K., Svavarsson, H. G., Nemnes, G. A., Pintilie, I., Manolescu, A.
One of the main degradation mechanisms of methylammonium lead iodine (MAPI), which is an important material for perovskite based solar cells, is the migration of iodide ions. It is believed that this phenomenon is in fact dominated by the diffusion o
Externí odkaz:
http://arxiv.org/abs/2403.04188