Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Zimányi, Gergely T."'
Autor:
Unruh, Davis, Meidanshahi, Reza Vatan, Goodnick, Stephen M., Csányi, Gábor, Zimányi, Gergely T.
Hydrogenation of amorphous silicon (a-Si:H) is critical for reducing defect densities, passivating mid-gap states and surfaces, and improving photoconductivity in silicon-based electro-optical devices. Modelling the atomic scale structure of this mat
Externí odkaz:
http://arxiv.org/abs/2106.02946
Autor:
Unruh, Davis, Meidanshahi, Reza Vatan, Hansen, Chase, Manzoor, Salman, Goodnick, Stephen M., Bertoni, Mariana I., Zimanyi, Gergely T.
Heterojunction Si solar cells exhibit notable performance degradation. We developed the SolDeg platform to model this degradation as electronic defects getting generated by thermal activation across energy barriers over time. First, molecular dynamic
Externí odkaz:
http://arxiv.org/abs/2012.01703
Publikováno v:
Phys. Rev. B 103, 195303 (2021)
We simulated electron transport across a binary nanocrystal solid (BNS) of PbSe NCs with diameters of 6.5nm and 5.1nm. We used our Hierarchical Nanoparticle Transport Simulator HINTS to model the transport in these BNSs. The mobility exhibits a minim
Externí odkaz:
http://arxiv.org/abs/2011.11244
Autor:
Hansen, Chase, Unruh, Davis, Alba, Miguel, Qian, Caroline, Abelson, Alex, Law, Matt, Zimanyi, Gergely T.
The efficiency of nanoparticle (NP) solar cells has grown impressively in recent years, exceeding 16%. However, the carrier mobility in NP solar cells, and in other optoelectronic applications remains low, thus critically limiting their performance.
Externí odkaz:
http://arxiv.org/abs/2009.01319
Autor:
Unruh, Davis, Camjayi, Alberto, Hansen, Chase, Bobadilla, Joel, Rozenberg, Marcelo J., Zimanyi, Gergely T.
We show that Nanoparticle (NP) solids are an exciting platform to seek new insights into the disordered Mott-Hubbard physics. We developed a "Hierarchical Nanoparticle Transport Simulator" (HINTS), which builds from localized states to describe the D
Externí odkaz:
http://arxiv.org/abs/1903.10575
Akademický článek
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Quantitative Decoding of Interactions in Tunable Nanomagnet Arrays Using First Order Reversal Curves
Autor:
Gilbert, Dustin A., Zimanyi, Gergely T., Dumas, Randy K., Winklhofer, Michael, Gomez, Alicia, Eibagi, Nasim, Vicent, J. L., Liu, Kai
Publikováno v:
Scientic Reports 4, 4204 (2014)
To develop a full understanding of interactions in nanomagnet arrays is a persistent challenge, critically impacting their technological acceptance. This paper reports the experimental, numerical and analytical investigation of interactions in arrays
Externí odkaz:
http://arxiv.org/abs/1401.7749
Autor:
Andresen, Juan Carlos, Pramudya, Yohanes, Katzgraber, Helmut G., Thomas, Creighton K., Zimanyi, Gergely T., Dobrosavljevic, V.
Publikováno v:
Phys. Rev. B 93, 094429 (2016)
We explore the stability of far-from-equilibrium metastable states of a three-dimensional Coulomb glass at zero temperature by studying charge avalanches triggered by a slowly varying external electric field. Surprisingly, we identify a sharply defin
Externí odkaz:
http://arxiv.org/abs/1309.2887
Autor:
Andresen, Juan Carlos, Zhu, Zheng, Andrist, Ruben S., Katzgraber, Helmut G., Dobrosavljevic, V., Zimanyi, Gergely T.
Publikováno v:
Phys. Rev. Lett. 111, 097203 (2013)
We investigate the conditions required for general spin systems with frustration and disorder to display self-organized criticality, a property which so far has been established only for the fully-connected infinite-range Sherrington-Kirkpatrick Isin
Externí odkaz:
http://arxiv.org/abs/1210.3796
Autor:
Pazmandi, Ferenc, Zimanyi, Gergely T.
We probe the droplet excitations in short range spin glasses by adding a perturbative long range interaction that decays with distance as a power law: $J/r^{\sigma}$. It is shown that if the power law exponent $\sigma$ is smaller than the spatial dim
Externí odkaz:
http://arxiv.org/abs/0903.4235