Dr. Andrzej Ostrasz

University of Wroc³aw
Institute of Experimental Physics
Section of Applications of Nuclear Physics
tel.: (+48) 71 3759 336
e-mail: ostrasz@ifd.uni.wroc.pl

Education

  • 1977 M. Sc. (Solid State Physics), Institute of Experimental Physics, University of Wroc³aw
  • 1987 Ph. D. (Solid State Physics), Institute of Experimental Physics, University of Wroc³aw, Dissertation: Study of the electronic structure of hydrogenated vanadium-iron alloys by the positron annihilation and Mössbauer effect.

Employment (summary)

  • 1977-1982 Assistant, Institute of Experimental Physics, University of Wroc³aw,
  • 1982-1987 Senior Assistant, Institute of Experimental Physics, University of Wroc³aw,
  • from 1987 Assistant Professor, Institute of Experimental Physics, University of Wroc³aw.

Research Interests

  • Electronic structure of transition metal alloys, Positron annihilation (1979-1983)
  • Hydrogenated alloys, Positron annihilation, Mössbauer effect (1984-1991)
  • Magnetic properties of transition metal alloys and hydrides, Positron annihilation, Mössbauer effect (1992-2001)
  • Interstitial hydrogen and structural properties of hydrides, Positron annihilation, Mössbauer effect (2002-2005)

Publications
25 original papers

Most Relevant Papers

  • Influence of Hydrogen Absorption on the Electronic Structure of V-Fe Alloys, A.Ostrasz, M.Szuszkiewicz and J.Chojcan, Hyperfine Interactions 28, 1055 (1986).
  • 3d-Like Electron Localization and Charge Transfer in Hydrogenated V-Fe Alloys, A.Ostrasz and M.Szuszkiewicz, phys. stat. sol. (b) 139, 205 (1987).
  • Hyperfine Interactions in Hydrogenated Vanadium-Iron Alloys, A.Ostrasz and M.Szuszkiewicz, Hyperfine Interactions 59, 509 (1990).
  • Study of the Influence of Hydrogen Absorption on the Magnetic Properties of V-Fe-H Alloys by Low-Temperature Mössbauer Spectroscopy, A.Ostrasz and M.Szuszkiewicz, Hyperfine Interactions 68, 369 (1991).
  • Effect of Hydrogen on the Hyperfine Magnetic Field in Crystalline Zr-Fe Alloys, A.Ostrasz and M. Szuszkiewicz, Hyperfine Interactions 94, 2287 (1994).
  • Evaluattion of the Hyperfine Magnetic Field Distribution in Hydrogenated Zr-Fe Alloys, A. Ostrasz, Phys. stat. sol. (b) 209, 463 (1998).
  • Study of the Hydrogen Effect on the Magnetic Transition in Ti-Fe Alloys by Mössbauer Spectroscopy, A. Ostrasz and B. Brzeska, Molecular Physics Reports 30, 107 (2000).
  • Interaction between interstitial hydrogen and Fe atoms within the hydride phase in Nb1-yFeyHx alloys, B. Brzeska-Michalak and A. Ostrasz, Hyperfine Interactions 156 (1), 137-142 (2004).

Other activities
  • from 1979 Member of the Polish Physical Society (PTF),
  • 1990-1995 Secretary of the Polish Seminar on Positron Annihilation (PSPA),
  • 1997, 1999, 2001, 2005 Editor of the PSPA Proceedings (in Acta Physica Polonica A).