Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Bo Hellsing"'
Autor:
Thomas Frederiksen, Bo Hellsing, Justin W. Wells, Federico Mazzola, Thiagarajan Balasubramanian
The linewidths of the electronic bands originating from the electron-phonon coupling in graphene are analyzed based on model tight-binding calculations and experimental angle-resolved photoemission spectroscopy (ARPES) data. Our calculations confirm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bdc22069cc409781babbc066e546e40
http://arxiv.org/abs/1808.08620
http://arxiv.org/abs/1808.08620
Autor:
Thomas Frederiksen, Thiagarajan Balasubramanian, Bo Hellsing, Philip Hofmann, Justin W. Wells, Federico Mazzola
Publikováno v:
Mazzola, F, Frederiksen, T, Balasubramanian, T, Hofmann, P, Hellsing, B & Wells, J W 2017, ' Strong electron-phonon coupling in the sigma band of graphene ', Physical Review B, vol. 95, no. 7, 075430 . https://doi.org/10.1103/PhysRevB.95.075430
First-principles studies of the electron-phonon coupling in graphene predict a high coupling strength for the $\sigma$ band with $\lambda$ values of up to 0.9. Near the top of the $\sigma$ band, $\lambda$ is found to be $\approx 0.7$. This value is c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90e70fd13c31b4a0c1892bdefd67302f
https://pure.au.dk/portal/da/publications/strong-electronphonon-coupling-in-the-sigma-band-of-graphene(26cb64cf-ace4-42c9-a572-3aea19e96f2f).html
https://pure.au.dk/portal/da/publications/strong-electronphonon-coupling-in-the-sigma-band-of-graphene(26cb64cf-ace4-42c9-a572-3aea19e96f2f).html
The aim of this model study of the electron-phonon coupling in graphene was to find out about the relative importance of the inter- and intraband scattering and which phonon modes are the most active. This was achieved by analyzing the electron-phono
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ea107e9036ed392c8a1e2488ef0cc7e
http://arxiv.org/abs/1602.07126
http://arxiv.org/abs/1602.07126
Publikováno v:
Applied Surface Science. 254:7938-7941
We present a simplified procedure for the analysis of the phonon-induced lifetimes of surface states. The model includes information about the electron and phonon structure and is thus more reliable than procedures based on phonon Debye models. We ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf3836522162a7225a0d32f444fc994d
https://doi.org/10.1016/j.apsusc.2008.03.187
https://doi.org/10.1016/j.apsusc.2008.03.187
Autor:
Bo Hellsing, Viatcheslav M. Silkin
Publikováno v:
Physical Review B. 92
A prediction how to experimentally distinguish excitations of extrinsic plasmarons from intrinsic plasmarons is presented. In surface systems where excitations of acoustic surface plasmons is possible it is shown that the photo-electron yield in norm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83f1bce25f1910cfbb91e80280d3bf9f
https://doi.org/10.1103/physrevb.92.205421
https://doi.org/10.1103/physrevb.92.205421
Publikováno v:
Surface Science. 600:6-14
We study the reactivity of a metallic quantum dot when exposed to a gas phase CO molecule. First, we perform a Newns–Anderson model calculation in which the valence electrons of the quantum dot are confined by a finite potential well and the molecu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9996e9e1ab12b8b9a558184f0e27c074
https://doi.org/10.1016/j.susc.2005.08.044
https://doi.org/10.1016/j.susc.2005.08.044
Publikováno v:
Surface Science. 593:12-18
Many important chemical and physical phenomena are influenced by inherent dissipative processes, which involve energy transfer between the electrons (electron–electron scattering) and between the electrons and the ionic motion (electron–phonon sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d350053ef684362975904537f7e8ef50
https://doi.org/10.1016/j.susc.2005.06.039
https://doi.org/10.1016/j.susc.2005.06.039
Autor:
V. Lindberg, Bo Hellsing
Publikováno v:
Journal of Physics: Condensed Matter. 17:S1075-S1094
In a quantum dot, the electrons are confined in all three dimensions to a length scale of the order of the electron Fermi wavelength. Due to the confinement, quantum effects will dominate over the bulk properties and the energy spectrum becomes discr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f168945b82cb192f2cc7f2448b13783
https://doi.org/10.1088/0953-8984/17/13/004
https://doi.org/10.1088/0953-8984/17/13/004
Publikováno v:
Interface Science. 12:227-234
The microscopic properties a ZnO grain boundary containing extrinsic point defects are studied using a density functional computational approach. The results show that the grain boundary acts as a sink for native defects, such as the zinc vacancy and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a39f050eff8ba7815363772bbeecf40
https://doi.org/10.1023/b:ints.0000028652.75962.10
https://doi.org/10.1023/b:ints.0000028652.75962.10
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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instname
We present a theoretical investigation of the phonon mediated image state electron decay at Ag(100) and Cu(100) metal surfaces. The electron–phonon interaction contribution to the broadening (inverse lifetime) as well as electron–phonon coupling
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0af2a5eb127b8556f563ab2e9f56cecb
https://doi.org/10.1016/s0368-2048(03)00058-6
https://doi.org/10.1016/s0368-2048(03)00058-6