Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Jenö Kürti"'
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
Publikováno v:
physica status solidi (b). 248:2435-2444
We review the key aspects of Raman spectroscopy of graphite and graphene, focusing on the double resonant Raman modes such as the D, D* (also known as G' or 2D), and D' bands. We discuss the practical significance of Raman spectroscopy for the study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3fd988493f46de15c192365fddba640
https://doi.org/10.1002/pssb.201100295
https://doi.org/10.1002/pssb.201100295
Publikováno v:
The Journal of Physical Chemistry Letters. 2:2079-2082
While the vibrational features detected by Raman spectroscopy constitute an essential fingerprint of carbon nanotubes, the same is not true for infrared spectroscopy: studies are few, and agreement is scarce. In this paper, we study wide-range transm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b80a82a8e9827836aaa32fca2811e37b
https://doi.org/10.1021/jz200899d
https://doi.org/10.1021/jz200899d
Publikováno v:
physica status solidi (b). 247:2920-2923
We study the strength of the binding of 4d and 5d transition metals on a graphene sheet in the limit of low- and high-coverage using first principles density functional theory. A database of the binding energies is presented. Our results show that Mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75acc5bce55454878387dda8c1b852f5
https://doi.org/10.1002/pssb.201000168
https://doi.org/10.1002/pssb.201000168
Autor:
Herwig Peterlik, Luka Ćirić, Rudolf Pfeiffer, János Koltai, Norbert M. Nemes, László Korecz, Gábor Fábián, László Forró, M. Galambos, Á. Rusznyák, Viktor Zólyomi, Hans Kuzmany, Antal Rockenbauer, Balázs Dóra, Ferenc Simon, Jenö Kürti, Thomas Pichler
Publikováno v:
physica status solidi (b). 246:2760-2763
We study the electron spin resonance (ESR) signal of pristine and potassium doped SWCNTs. We identify signals of a super-paramagnetic background, a low intensity impurity, and of the conduction electron spin resonance (CESR). The latter only appears
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::475176a29a66569f54b29f820a2f9fbe
https://doi.org/10.1002/pssb.200982330
https://doi.org/10.1002/pssb.200982330
Autor:
Ferenc Simon, D. Quintavalle, Jenö Kürti, Thomas Pichler, Norbert M. Nemes, Mark H. Rümmeli, János Koltai, Hans Kuzmany, László Forró, M. Galambos, Viktor Zólyomi, Bálint Náfrádi
Publikováno v:
physica status solidi (b). 245:1975-1978
Electron spin resonance (ESR) measurements on SWCNTs doped with alkali atoms (potassium) using a solid state reaction is reported. We find the emergence of the ESR signal of itinerant electrons upon doping with a signal intensity that is comparable t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43101d33f96c4c4f117f489d3cbf7e18
https://doi.org/10.1002/pssb.200879645
https://doi.org/10.1002/pssb.200879645
Publikováno v:
physica status solidi (b). 245:2018-2021
We present a first principles study of the electronic band structure of fullerene-cubane (C 60 C 8 H 8 ) cocrystals, using density functional theory at the local density approximation level. The band structure is calculated along high symmetry lines
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::581239eb41ca6a264386690400e12919
https://doi.org/10.1002/pssb.200879595
https://doi.org/10.1002/pssb.200879595
Autor:
Rudolf Pfeiffer, Jenö Kürti, Ferenc Simon, Hans Kuzmany, Herwig Peterlik, Viktor Zólyomi, Á. Rusznyák
Publikováno v:
physica status solidi (b). 244:4257-4260
The radial breathing mode in the Raman spectrum of 13 C isotope enriched single walled carbon nanotubes is inhomogeneously broadened due to the random distribution of isotopes. We study this effect theoretically using density functional theory within
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f18704786fc92adbc8deafaf866456e
https://doi.org/10.1002/pssb.200776146
https://doi.org/10.1002/pssb.200776146
Publikováno v:
physica status solidi (b). 244:4261-4264
The energy dispersion of the D* (G') band shows a strong diameter dependence according to Raman measurements on double walled carbon nanotubes. The Raman shift of the small diameter inner tubes shows an average softening. There is an oscillation arou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6e48be3e795d81dfeb29f37ab16c107
https://doi.org/10.1002/pssb.200776168
https://doi.org/10.1002/pssb.200776168
Autor:
Jenö Kürti, Viktor Zólyomi
We use fully self-consistent GW calculations on diamond and silicon carbide to reparametrize the Heyd-Scuseria-Ernzerhof exact exchange density functional for use in band structure calculations of semiconductors and insulators. We show that the thus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01ced0fa6666469fe78898867b21170b
http://arxiv.org/abs/1502.07141
http://arxiv.org/abs/1502.07141
