Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Kyritsakis Andreas"'
Autor:
Vlassov Sergei, Bocharov Dmitry, Polyakov Boris, Vahtrus Mikk, Šutka Andris, Oras Sven, Zadin Veronika, Kyritsakis Andreas
Publikováno v:
Nanotechnology Reviews, Vol 12, Iss 1, Pp 1-22 (2023)
In this critical review, we call attention to a widespread problem related to the vast disagreement in elastic moduli values reported by different authors for nanostructures made of the same material. As a particular example, we focus on ZnO nanowire
Externí odkaz:
https://doaj.org/article/e420bd5eb502443a94315ba21e7126b4
Autor:
Meng, Guodong, Li, Yimeng, Koitermaa, Roni Aleksi, Zadin, Veronika, Cheng, Yonghong, Kyritsakis, Andreas
Nano-protrusion (NP) on metal surface and its inevitable contamination layer under high electric field is often considered as the primary precursor that leads to vacuum breakdown, which plays an extremely detrimental effect for high energy physics eq
Externí odkaz:
http://arxiv.org/abs/2403.11794
Vacuum arcing poses significant challenges for high-field vacuum devices, underscoring the importance of understanding it for their efficient design. A detailed description of the physical mechanisms involved in vacuum arcing is yet to be achieved, d
Externí odkaz:
http://arxiv.org/abs/2402.08404
Autor:
Moradpur-Tari, Ehsan, Vlassov, Sergei, Oras, Sven, Ernits, Mart, Damerchi, Elyad, Polyakovc, Boris, Kyritsakis, Andreas, Zadin, Veronika
Publikováno v:
Ultramicroscopy, Volume 261, 2024, 113949
Nanoparticles in microscopy images are usually analyzed qualitatively or manually and there is a need for autonomous quantitative analysis of these objects. In this paper, we present a physics-based computational model for accurate segmentation and g
Externí odkaz:
http://arxiv.org/abs/2306.15319
Autor:
Kyritsakis, Andreas
Publikováno v:
J. Appl. Phys. 133, 113302 (2023)
Field electron emission from nanometer-scale objects deviates from the predictions of the classical emission theory as both the electrostatic potential curves within the tunneling region and the image potential deviates from the planar one. This impe
Externí odkaz:
http://arxiv.org/abs/2207.06263
Publikováno v:
J. Phys. D: Appl. Phys. 55, 465302 (2022)
Under strong electric fields, an arc of strong current flowing through plasma can link two metal surfaces even in ultra high vacuum. Despite decades of research, the chain of events leading to vacuum arc breakdowns is hitherto unknown. Previously we
Externí odkaz:
http://arxiv.org/abs/2205.13236
Although atomic diffusion on metal surfaces under high electric fields has been studied theoretically and experimentally since the 1970s, its accurate and quantitative theoretical description remains a significant challenge. In our previous work, we
Externí odkaz:
http://arxiv.org/abs/2201.03460
Autor:
Moradpur-Tari, Ehsan, Vlassov, Sergei, Oras, Sven, Ernits, Mart, Damerchi, Elyad, Polyakov, Boris, Kyritsakis, Andreas, Zadin, Veronika
Publikováno v:
In Ultramicroscopy July 2024 261
Publikováno v:
In Applied Surface Science 15 January 2024 643
Autor:
Vázquez, Henrique, Kononov, Alina, Kyritsakis, Andreas, Medvedev, Nikita, Schleife, André, Djurabekova, Flyura
Publikováno v:
Phys. Rev. B 103, 224306 (2021)
Highly energetic ions traversing a two-dimensional material such as graphene produce strong electronic excitations. Electrons excited to energy states above the work function can give rise to secondary electron emission, reducing the amount of energy
Externí odkaz:
http://arxiv.org/abs/2011.15117