Zobrazeno 1 - 10
of 89
pro vyhledávání: '"R.E. Perälä"'
Autor:
Pekka Laukkanen, Mikhail Kuzmin, Johan Adell, Kalevi Kokko, J. Lang, Marko Patrick John Punkkinen, Johnny Dahl, R.E. Perälä
Publikováno v:
Surface Science. 615:88-96
Clean and metal-adsorbed (100) surfaces of group-IV semiconductors, such as Si and Ge, often exhibit electronically and structurally similar reconstructions. However, the fundamental bulk properties of group-IV materials can have an impact on particu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::033053149b9cb0e3afa4b8db63733141
https://doi.org/10.1016/j.susc.2013.04.010
https://doi.org/10.1016/j.susc.2013.04.010
Autor:
Levente Vitos, Matti Ropo, T. Kilpi, Marko Patrick John Punkkinen, Edwin Kukk, Sasuma Granroth, E. Nurmi, Kalevi Kokko, Antti Kuronen, R.E. Perälä, Markku Heinonen
Publikováno v:
Materials Science Forum. 762:728-733
Surface and interface properties of Fe-Cr, Fe-Al, and Fe-Cr-Al are studied using Exact Muffin-Tin Orbitals and Monte Carlo methods and with x-ray photoelectron and Auger electron techniques. Surface composition is investigated as a function of oxidat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db62223b9fc53b44289c277fd48324b8
https://doi.org/10.4028/www.scientific.net/msf.762.728
https://doi.org/10.4028/www.scientific.net/msf.762.728
Autor:
Pekka Laukkanen, Karina Schulte, Johan Adell, M. Ahola-Tuomi, Janusz Kanski, I. J. Vayrynen, Kalevi Kokko, Levente Vitos, Mikhail Kuzmin, Johnny Dahl, Marko Patrick John Punkkinen, Mircea Guina, J. Lang, M. Pessa, Mikko Tuominen, R.E. Perälä, Janusz Sadowski, Börje Johansson, V. Tuominen
Publikováno v:
Surface Science
Tin (Sn) induced (1 x 2) reconstructions on GaAs(100) and InAs(100) substrates have been studied by low energy electron diffraction (LEED), photoelectron spectroscopy, scanning tunneling microscopy/spectroscopy (STM/STS) and ab initio calculations. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daf26e6795810006bae7a23cd957bfe7
https://doi.org/10.1016/j.susc.2011.01.034
https://doi.org/10.1016/j.susc.2011.01.034
Autor:
R.E. Perälä, Börje Johansson, I. J. Vayrynen, Levente Vitos, Kalevi Kokko, Marko Patrick John Punkkinen, Mikhail Kuzmin, Pekka Laukkanen, Matti Ropo, Lang Jouko, M. Ahola-Tuomi, M. Pessa, Janne Pakarinen, Antti Tukiainen
Publikováno v:
Surface Science
Surface core-level shifts (SCLSs) of the (2 x 4)-reconstructed InP(100) surface with the established mixed In-P dimer structure have been investigated by first-principles calculations and photoelec ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f2218a701cbe815eb825edcf409879c
https://doi.org/10.1016/j.susc.2009.07.003
https://doi.org/10.1016/j.susc.2009.07.003
Autor:
Mikhail Kuzmin, Pekka Laukkanen, M. Ahola-Tuomi, Matti Punkkinen, I. J. Vayrynen, R.E. Perälä
Publikováno v:
Surface Science. 603:102-108
The Yb growth on a vicinal Si(1 0 0) surface has been studied by scanning tunneling microscopy and low energy electron diffraction in the coverage range of 1–4 ML. Two different methods of the Yb/Si(1 0 0) interface formation are applied, leading t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c23fb84d93e3b028d0eebbf9023189c
https://doi.org/10.1016/j.susc.2008.10.026
https://doi.org/10.1016/j.susc.2008.10.026
Autor:
M. Ahola-Tuomi, I. J. Vayrynen, M. Pessa, Pekka Laukkanen, Johan Adell, Martin Adell, Mikhail Kuzmin, Karl Schulte, Marko Patrick John Punkkinen, R.E. Perälä, Antti Tukiainen, Janne Pakarinen
Publikováno v:
Surface Science. 601:3395-3399
The bismuth-stabilized (2 x 4)-reconstructed InP(100) surface [Bi/InP(100)(2 x 4)] has been studied by synchrotron-radiation core-level photoelectron spectroscopy. The spectra are compared with previous core-level data obtained on a clean InP(100)(2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0892136e062d3ee6fedf0a0c147de040
https://doi.org/10.1016/j.susc.2007.06.013
https://doi.org/10.1016/j.susc.2007.06.013
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 159:24-29
Using high-resolution core-level photoelectron spectroscopy with synchrotron radiation, we have studied Ge(1 1 1)2 × 1–Sb and Ge(1 1 1)(√3 × √3) R 30°–Bi reconstructions formed at the metal coverage of 1 and 1/3 monolayers, respectively. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc703403564508b40e2455597d67602
https://doi.org/10.1016/j.elspec.2007.03.003
https://doi.org/10.1016/j.elspec.2007.03.003
Publikováno v:
Surface Science. 601:837-843
By scanning tunneling microscopy and spectroscopy (STM/S) and high-resolution core-level photoemission using synchrotron radiation, we have investigated the atomic structure and electronic properties of Sb-induced 2 × 1 reconstruction on Ge(1 1 1).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e62629c0c85acab6fb002379892762d
https://doi.org/10.1016/j.susc.2006.11.029
https://doi.org/10.1016/j.susc.2006.11.029
Autor:
Levante Vitos, R.E. Perälä, Börje Johansson, Pekka Laukkanen, S. Granroth, Antti Kuronen, Markku Heinonen, T. Kilpi, Matti Ropo, Johnny Dahl, Kalevi Kokko, Lang Jouko, Marko Patrick John Punkkinen
Publikováno v:
Physical Review B. 92
Iron-chromium alloys, the base components of various stainless steel grades, have numerous technologically and scientifically interesting properties. However, these features are not yet sufficiently understood to allow their full exploitation in tech
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c7d3df0a7a807e562e8fd08674a9a8a
https://doi.org/10.1103/PhysRevB.92.214113
https://doi.org/10.1103/PhysRevB.92.214113
Autor:
V. Rimpilainen, Pekka Laukkanen, J. Pakarinen, Janusz Sadowski, M. Ahola-Tuomi, M. Pessa, Martin Adell, I. J. Vayrynen, R.E. Perälä, Mikhail Kuzmin, Antti Tukiainen
Publikováno v:
Surface Science. 600:3022-3027
The (2 × 4)-reconstructed InP(1 0 0) surfaces have been investigated by scanning tunneling microscopy (STM) and synchrotron-radiation core-level photoelectron spectroscopy. STM observations show that the α2 model describes the atomic structure of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1928dcf26453240ddb419d9a6b1e6864
https://doi.org/10.1016/j.susc.2006.05.021
https://doi.org/10.1016/j.susc.2006.05.021