Zobrazeno 1 - 10
of 72
pro vyhledávání: '"János Koltai"'
Autor:
Zoltán Kovács-Krausz, Dániel Nagy, Albin Márffy, Bogdan Karpiak, Zoltán Tajkov, László Oroszlány, János Koltai, Péter Nemes-Incze, Saroj P. Dash, Péter Makk, Szabolcs Csonka, Endre Tóvári
Publikováno v:
npj Quantum Materials, Vol 9, Iss 1, Pp 1-8 (2024)
Abstract The layered van der Waals material ZrTe5 is known as a candidate topological insulator (TI), however its topological phase and the relation with other properties such as an apparent Dirac semimetallic state is still a subject of debate. We e
Externí odkaz:
https://doaj.org/article/5509ac6ce1534663b03ba8d6a6ec680f
Publikováno v:
Nanomaterials, Vol 14, Iss 7, p 627 (2024)
Carbon nanotubes filled with organic molecules can serve as chemical nanoreactors. Recent experimental results show that, by introducing cyclic hydrocarbon molecules inside carbon nanotubes, they can be transformed into nanoribbons or inner tubes, de
Externí odkaz:
https://doaj.org/article/6303c6f1c64249bba767efc481f48571
Autor:
Zoltán Tajkov, Dániel Nagy, Konrád Kandrai, János Koltai, László Oroszlány, Péter Süle, Zsolt E. Horváth, Péter Vancsó, Levente Tapasztó, Péter Nemes-Incze
Publikováno v:
npj Computational Materials, Vol 8, Iss 1, Pp 1-7 (2022)
Abstract Topological materials host robust properties, unaffected by microscopic perturbations, owing to the global topological properties of the bulk electron system. Materials in which the topological invariant can be changed by easily tuning exter
Externí odkaz:
https://doaj.org/article/d5672509c90d46ffa8af3f88af708538
Autor:
Péter Nemes-Incze, Gergő Kukucska, János Koltai, Jenő Kürti, Chanyong Hwang, Levente Tapasztó, László P. Biró
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
Abstract Patterning graphene into various mesoscopic devices such as nanoribbons, quantum dots, etc. by lithographic techniques has enabled the guiding and manipulation of graphene’s Dirac-type charge carriers. Graphene, with well-defined strain pa
Externí odkaz:
https://doaj.org/article/5dc24593081e4c109c72923f9de242d3
Publikováno v:
Applied Sciences, Vol 9, Iss 20, p 4330 (2019)
Combining graphene with other novel layered materials is a possible way for engineering the band structure of charge carriers. Strong spin-orbit coupling in BiTeX compounds and the recent fabrication of a single layer of BiTeI points towards a feasib
Externí odkaz:
https://doaj.org/article/9cdc3549eba14ae48b98b2a0646fe77f
Autor:
Alvaro Rodriguez, Matěj Velický, Jaroslava Řáhová, Viktor Zólyomi, János Koltai, Martin Kalbáč, Otakar Frank
Publikováno v:
Physical Review B. 105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78522728e320ca639941f3c99159272f
https://doi.org/10.1103/physrevb.105.195413
https://doi.org/10.1103/physrevb.105.195413
Autor:
György Baranka, Zsolt Endre Horváth, Anna Vymazalová, Áron Pekker, Ákos Hoffmann, Péter Nemes-Incze, János Koltai, Péter Vancsó, Gergő Kukucska, Levente Tapasztó, Konrád Kandrai, Katalin Kamarás
Publikováno v:
Nano Letters
Quantum spin Hall (QSH) insulators are materials that feature an insulating bulk and host edge states protected by time-reversal symmetry. The helical locking of spin and momentum in these states suppresses backscattering of charge carriers, promisin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4946f4e7838c6d454ff8ec124596177c
https://doi.org/10.1021/acs.nanolett.0c01499
https://doi.org/10.1021/acs.nanolett.0c01499
Autor:
Imre Hagymási, Mohammad Syahid Mohd Isa, Zoltán Tajkov, Krisztián Márity, László Oroszlány, János Koltai, Assem Alassaf, Péter Kun, Konrád Kandrai, András Pálinkás, Péter Vancsó, Levente Tapasztó, Péter Nemes-Incze
Publikováno v:
Science Advances
In crystalline solids the interactions of charge and spin can result in a variety of emergent quantum ground states, especially in partially filled, topological flat bands such as Landau levels or in 'magic-angle' bilayer graphene. Much less explored
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::229d49f11f4b524e997d77dc6a65d8cc
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=108810
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=108810
Autor:
Zoltán Kovács-Krausz, Endre Tóvári, Dániel Nagy, Albin Márffy, Bogdan Karpiak, Zoltán Tajkov, László Oroszlány, János Koltai, Péter Nemes-Incze, Saroj P. Dash, Péter Makk, Szabolcs Csonka
The layered material ZrTe$_5$ appears to exhibit several exotic behaviors which resulted in significant interest recently, although the exact properties are still highly debated. Among these we find a Dirac/Weyl semimetallic behavior, nontrivial spin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15cd5efd14ddc94d17c2afdc89f2c15b
Autor:
Hans Kuzmany, Takeshi Saito, Wim Wenseleers, Jenő Kürti, Kecheng Cao, Gergő Kukucska, Lei Shi, János Koltai, Sofie Cambré, Thomas Pichler, Miles Martinati, Ute Kaiser
Publikováno v:
Carbon
Graphene nanoribbons with sub-nanometer widths are extremely interesting for nanoscale electronics and devices as they combine the unusual transport properties of graphene with the opening of a band gap due to quantum confinement in the lateral dimen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57df7737361995c2a159574cf9949df4
https://hdl.handle.net/10067/1713590151162165141
https://hdl.handle.net/10067/1713590151162165141