Juhani Väyrynen

Laboratory of Industrial Physics (Department of Physics and Astronomy)

vayrynen@utu.fi

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Magnetic origin of the chemical balance in alloyed Fe-Cr stainless steels: First-principles and Ising model study (2014)
- Computational Materials Science
Airiskallio E, Nurmi E, Vayrynen IJ, Kokko K, Ropo M, Punkkinen MPJ, Johansson B, Vitos L
A METHOD FOR TREATING A SUBSTRATE AND A SUBSTRATE (2012) P. Laukkanen, J. Lång, M. Punkkinen, M. Tuominen, V. Tuominen; J. Dahl, J. Väyrynen
Oxidized In-containing III-V(100) surfaces: Formation of crystalline oxide films and semiconductor-oxide interfaces (2011)
- Physical Review B
M P J Punkkinen, P Laukkanen, J Lång, M Kuzmin, M Tuominen, V Tuominen, J Dahl, M Pessa, M Guina, K Kokko, J Sadowski, B Johansson, I J Väyrynen, L Vitos
Surface core-level shifts on Ge(111)c(2x8): Experiment and theory (2011)
- Physical Review B
M Kuzmin, M P J Punkkinen, P Laukkanen, J J K Lång, J Dahl, V Tuominen, M Tuominen, R E Perälä, T Balasubramanian, J Adell, B Johansson, L Vitos, K Kokko, I J Väyrynen
Tin stabilized (1×2) and (1×4) reconstructions on GaAs(100) and InAs(100) studied by scanning tunneling microscopy, photoelectron spectroscopy, and ab initio calculations (2011)
- Surface Science
J J K Lång, P Laukkanen, M P J Punkkinen, M Ahola-Tuomi, M Kuzmin, V Tuominen, J Dahl, M Tuominen, R E Perälä, K Schulte, J Adell, J Sadowski, J Kanski, M Guina, M Pessa, K Kokko, B Johansson, L Vitos, I J Väyrynen
Bismuth-stabilized c(2x6) reconstruction on a InSb(100) substrate: Violation of the electron counting model (2010)
- Physical Review B
Laukkanen P, Punkkinen M P J, Räsänen N, Ahola-Tuomi M, Kuzmin M, Lång J, Sadowski J, Adell J, Perälä R E, Ropo M, Kokko K, Vitos L, Johansson B, Pessa M, Väyrynen I J
Core-level shifts of the c(8x2)-reconstructed InAs(100) and InSb(100) surfaces (2010)
- Journal of Electron Spectroscopy and Related Phenomena
Laukkanen P, Punkkinen M P J, Ahola-Tuomi M, Lång J, Schulte K, Pietzsch A Kuzmin M, Sadowski J, Adell J, Perälä R E, Ropo M, Kokko K, Vitos L, Johansson B, Pessa M, Väyrynen I J
Effects of (NH4)2S and NH4OH surface treatments prior to SiO2 capping on 1.3: GaInAsN/GaAs quantum well structures (2010)
- Applied Physics Letters
Polojärvi V, Salmi J, Schramm A, Tukiainen A, Guina M, Pakarinen J, Arola E, Lång J, Väyrynen I J, Laukkanen P
High temperature oxidation of Fe-Al and Fe-Cr-Al alloys: The role of Cr as a chemically active element (2010)
- Corrosion Science
Airiskallio E, Nurmi E, Heinonen M H, Väyrynen I J, Kokko K, Ropo M, Punkkinen M P J, Pitkänen H, Alatalo M, Kollár J, Johansson B, Vitos L
Third element effect in the surface zone of Fe-Cr-Al alloys (2010)
- Physical Review B
Airiskallio E, Nurmi E, Heinonen M H, Väyrynen I J, Kokko K, Ropo M, Punkkinen M P J, Pitkänen H, Alatalo M, Kollár J, Johansson B, Vitos L
Anomalous Bismuth-Stabilized (2x1) Reconstructions on GaAs(100) and InP(100) Surfaces (2008)
- Physical Review Letters
P. Laukkanen, M.P.J. Punkkinen, H.-P. Komsa, M. Ahola-Tuomi, K. Kokko, M. Kuzmin, J. Adell, J. Sadowski, R.E. Perälä, M. Ropo, T.T. Rantala, I.J. Väyrynen, M. Pessa, L. Vitos, J. Kollár, S. Mirbt, B. Johansson
Formation of an ordered pattern of Bi nanolines on InAs(100) by self-assembly (2008)
- Applied Physics Letters
M. Ahola-Tuomi, P. Laukkanen, M.P.J. Punkkinen, R.E. Perälä, I.J. Väyrynen, M. Kuzmin, K. Schulte, M. Pessa
Surface core-level shifts within complete screening: problems with pseudohydrogenated slabs (2008)
- Physical Review B
M.P.J. Punkkinen, K. Kokko, L. Vitos, P. Laukkanen, E. Airiskallio, M. Ropo, M. Ahola-Tuomi, M. Kuzmin, I.J. Väyrynen, B. Johansson
Yb-induced (2x3) and (2x4) reconstructions on Si(100) studied by STM, high-resolution core-level photoelectron spectroscopy, and first-principles calculations (2008)
- Physical Review B
M. Kuzmin, M.P.J. Punkkinen, P. Laukkanen, R.E. Perälä, M. Ahola-Tuomi, T. Balasubramanian, I.J. Väyrynen
A comparative study of clean and Bi-stabilized InP(100)(2 x 4) surfaces by the core-level photoelectron spectroscopy (2007)
- Surface Science
P. Laukkanen, M. Ahola-Tuomi, J. Adell, M. Adell, K. Schulte, M. Kuzmin, M.P.J. Punkkinen, J. Pakarinen, A. Tukiainen, R.E. Perälä, I.J. Väyrynen, M. Pessa
Atomic and electronic structure of the Yb/Ge(111)-(3 x 2) surface studied by high-resolution photoelectron spectroscopy (2007)
- Physical Review B
M. Kuzmin, K. Schulte, P. Laukkanen, M. Ahola-Tuomi, R.E. Perälä, M. Adell, T. Balasubramanian, I.J. Väyrynen
Atomic geometry and electronic properties of the Ge(111)2 x 1-Sb surface studied by scanning tunneling microscopy/spectroscopy and core-level photoemission. (2007)
- Surface Science
M. Kuzmin, P. Laukkanen, R.E. Perälä, M. Ahola-Tuomi, I.J. Väyrynen
High-resolution core-level photoemission study of Ge(111)2 x 1-Sb and Ge(111)(√3 x √3)R30º-Bi reconstructions (2007)
- Journal of Electron Spectroscopy and Related Phenomena
M. Kuzmin, P. Laukkanen, R.E. Perälä, M. Ahola-Tuomi, I.J. Väyrynen
Structural properties of Bi-stabilized reconstructions of GaInAs(100) surface (2007)
- Applied Physics Letters
P. Laukkanen, M. Ahola-Tuomi, M. Kuzmin, R.E. Perälä, I.J. Väyrynen, A. Tukiainen, J. Pakarinen, M. Saarinen, M. Pessa
Surface core-level shifts of GaAs(100)(2 x 4) from first principles. (2007)
- Physical Review B
M.P.J. Punkkinen, P. Laukkanen, K. Kokko, M. Ropo, M. Ahola-Tuomi, I.J. Väyrynen, H.-P. Komsa, T.T. Rantala, M. Pessa, M. Kuzmin, L. Vitos, J. Kollár, B. Johansson