Materials Science : An International Journal of Physics, Chemistry and Technology of Materials, Vol. 21, 2003, nr 1

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(1)Wrocław University of Technology Centre of Advanced Materials and Nanotechnology. Materials Science 7th Korean-Polish Joint Seminar on Physical Properties of Magnetic Materials Warszawa, Poland, 1-5 December 2002 Guest Editors Henryk K. Lachowicz Jang-Roh Rhee Wojciech Suski. Vol. 21. •. No. 1. •. Oficyna Wydawnicza Politechniki Wrocławskiej. 2003.

(2) Materials Science is an interdisciplinary journal devoted to experimental and theoretical research into the synthesis, structure, properties and applications of materials. Among the materials of interest are: • glasses and ceramics • sol-gel materials • photoactive materials (including materials for nonlinear optics) • laser materials • photonic crystals • semiconductor micro- and nanostructures • piezo-, pyro- and ferroelectric materials • high-Tc, superconductors • magnetic materials • molecular materials (including polymers) for use in electronics and photonics • novel solid phases • other novel and unconventional materials The broad spectrum of the areas of interest reflects the interdisciplinary nature of materials research. Papers covering the modelling of materials, their synthesis and characterisation, physicochemical aspects of their fabrication, properties and applications are welcome. In addition to regular papers, the journal features issues containing conference papers, as well as special issues on key topics in materials science. Materials Science is published under the auspices of the Centre of Advanced Materials and Nanotechnology of the Wrocław University of Technology, in collaboration with the Institute of Low Temperatures and Structural Research of the Polish Academy of Sciences and the Wroclaw University of Economics. All accepted papers are placed on the Web page of the journal and are available at the address: http://MaterialsScience.pwr.wroc.pl.

(3) Editor-in-Chief Juliusz Sworakowski Institute of Physical and Theoretical Chemistry Wrocław University of Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław, Poland sworakowski@pwr.wroc.pl Associate Editors Wiesław Stręk. Jerzy Hanuza. Institute of Low Temperature and Structure Research Polish Academy of Sciences P.O.Box 1410 50-950 Wrocław 2, Poland strek@int.pan.wroc.pl. Department of Bioorganic Chemistry Faculty of Industry and Economics Wrocław University of Economics Komandorska 118/120 53-345 Wrocław, Poland hanuza@credit.ae.wroc.pl Scientific Secretary. Krzysztof Maruszewski Intitute of Materials Science and Applied Mechanics Wrocław University of Technology Wybrzeże Wyspiańskiego 27 50-370 Wrocław, Poland maruszewski@pwr.wroc.pl Advisory Editorial Board Michel A. Aegerter, Saarbrücken, Germany Ludwig J. Balk, Wuppertal, Germany Victor E. Borisenko, Minsk, Belarus Mikhaylo S. Brodyn, Kyiv, Ukraine Maciej Bugajski, Warszawa, Poland Alexander Bulinski, Ottawa, Canada Roberto M. Faria, Sao Carlos, Brazil Reimund Gerhard-Multhaupt, Potsdam, Germany Paweł Hawrylak, Ottawa, Canada Jorma Hölsä, Turku, Finland Alexander A. Kaminskii, Moscow, Russia Wacław Kasprzak, Wrocław, Poland Andrzej Kłonkowski, Gdańsk, Poland Seiji Kojima, Tsukuba, Japan Shin-ya Koshihara, Tokyo, Japan Marian Kryszewski, Łódź, Poland Krzysztof J. Kurzydłowski, Warsaw, Poland Jerzy M. Langer, Warsaw, Poland Janina Legendziewicz, Wrocław, Poland Benedykt Licznerski, Wrocław, Poland. Tadeusz Luty, Wrocław, Poland Joop H. van der Maas, Utrecht, The Netherlands Bolesław Mazurek, Wrocław, Poland Gerd Meyer, Cologne, Germany Jan Misiewicz, Wrocław, Poland Jerzy Mroziński, Wrocław, Poland Robert W. Munn, Manchester, U.K. Krzysztof Nauka, Palo Alto, CA, U.S.A. Stanislav Nešpůrek, Prague, Czech Republic Romek Nowak, Santa Clara, CA, U.S.A. Tetsuo Ogawa, Osaka, Japan Renata Reisfeld, Jerusalem, Israel Marek Samoć, Canberra, Australia Jan Stankowski, Poznań, Poland Leszek Stoch, Cracow, Poland Jan van Turnhout, Delft, The Netherlands Jacek Ulański, Łódź, Poland Walter Wojciechowski, Wrocław, Poland Vladislav Zolin, Moscow, Russia.

(4) Editorial Office Łukasz Maciejewski. Editorial layout Hanna Basarowa. Printed in Poland Copyright by Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław 2003. Drukarnia Oficyny Wydawniczej Politechniki Wrocławskiej Zam. nr 195/2003..

(5) Contents Professor Bogusław Kędzia From the Guest Editors C. Gi Kim, C.-O. Kim, Y. Hu, J. Kanak, T. Stobiecki, S. Ogata, M. Tsunoda, M. Takahashi, Structure analysis and local magnetic parameters of magnetoresistance tunnel junctions T. Luciński, M. Kopcewicz, A. Hütten, H. Brückl, S. Heitmann, T. Hempel, G. Reiss, Magnetic properties of Fe/Si and Со/Si multilayers D. -G. Hwang, Rotational anisotropy in exchange-biased NiFe/FeMn bilayers J. Y. Hwang, J.R. Rhee, Exchange coupling field in top, bottom, and dual-type IrMn spin valves coupled to CoFe J. Wrona, T. Stobiecki, M. Czapkiewicz, R. Rak, Magnetometry of monoatomic layers and spin electronics elements D. H. Kim, I.T. Nam, Y.K. Hong, The effect of underlayers on grain orientation and magnetic properties of barium-ferrite thin film B. Idzikowski, A. Szajek, Magnetism of nanocrystalline and bulk Fe x Ni 23-x B 6 (x= 0, 1, 22 and 23) alloys - experiment and theory A. Ślawska-Waniewska, Effective magnetostriction in nanocrystalline alloys O. Nedelko, A. Ślawska-Waniewska, Y. Labaye, Micromagnetic simulation of multiphase nano crystalline material with different boundary conditions B. T. Cięciwa, L.J. Maksymowicz, M. Lubecka, H. Jankowski, J. Sokulski, Z. Sobków, Influence of indium dilution level on magnetic properties and photoconductivity of Cd 1-yCr 2-2x In2x+ySe4 magnetic semiconductors W. Suski, В. Belan, A. Gilewski, T. Mydlarz, К. Wochowski, Magnetic properties of the RMn 12-xTx al loys in high magnetic field H. Lee, Y.- S. Kim, S.- C. Yu, High-frequency magnetoimpedance effect in glass-coated amorphous Co83.2B 3.3Si5.9 Mn7.6 microwires H. K. Lachowicz, M. Kuźmińsk, S.- C. Yu, The effect of axial dc-field on transverse permeability in Co-based metallic glass ribbons M.-H. Phan, S.- C. Yu, A.N. Ulyanov, H.K. Lachowicz, Large magnetocaloric effect in perovskite manganites: changes of the magnetic entropy above 300 К Y. В. Kim, H.T. Kim, S.H. Cho, G.A. Kapustin, Microstructure and magnetic properties of NdFeB magnets fabricated by current-applied pressure-assisted process W.Y. Jeung, D.H. Choi, K.H. Lee, Effects of an external magnetic field on the perpendicular magnetic anisotropy of electrodeposited micro-patterned arrays. 5 7 9 25 39 47 55 65 73 83 93 99 107 115 123 133 141 147.

(6) Professor Bogusław Kędzia Professor Bogusław Kędzia, founder and the first Editor of Materials Science, passed away on 14 December 2002. His scientific career began in 1957 when, still being a student, he was appointed by Professor Bogusława Jeżowska-Trzebiatowska, then chairman of the 2 Chair of Inorganic Chemistry of the Wrocław University of Technology. Three years later, he graduated from the University, in 1963 he received PhD, in 1972 - DSc in Chemistry, and in 1976 he was appointed Professor of Chem istry. From 1969 until1972 he was Director of the Institute of Inorganic Chemistry of the Wrocław University of Technology, between 1972 and 1979 he held the position of vice-Rector, and in 1980/81 - of the Rector of the Wrocław University of Technol ogy. In 1993, he moved to the Central Institute of Labour Protection in Warsaw, where worked on modern multimedia for academic teaching of work safety and ergo nomics. Scientific interests of Professor Kędzia were focused on the coordination chemis try of rare and transition elements, mainly on their vibrational spectroscopy. In early years, he worked on theIR spectroscopy of uranyl compounds, then his interest shifted to transition metal complexes with organic ligands offering nitrogen, oxygen, sulfur and selenium atoms as coordinating centres. His late works were devoted to mono- and poly-nuclear carbonyls of chromium. A part of his results was obtained during his numerous visits to U.S. universities, where he collaborated with distin guished scientits (e.g., with Professor Kazuo Nakamoto). As an instructor, he was involved in modernizing inorganic chemistry courses. He was advisor of six PhD students; two of them received later their DScs, and one holds at present the professorial title. He was also member of editorial boards of several scientific journals, and served on scientific and organizing committees of several Polish and international conferences. Bogusław Kędzia was a man of wide interests and of warm heart. He will be missed by his colleagues and friends. Walter Wojciechowski.

(7) From the Guest Editors The Seventh Korean-Polish Joint Seminar on Physical Properties of Magnetic Materials was held from Sunday through Thursday, December 1-5, 2002, in Warsaw, in the seat of the Institute of Physics of the Polish Academy of Sciences. The Seminar was organized by the Institute of Physics and the Institute of Low Temperature and Structural Research, both belonging to the Polish Academy of Sciences. It was sup ported by the Polish Academy of Sciences, the Korean Science and Engineering Foundation, the Institute of Physics of the Polish Academy of Sciences, the Faculty of Materials Science and Engineering of the Warsaw University of Technology and the Committee of Physics of the Polish Academy of Sciences. The first Seminar of the series, initiated by Professor Seong-Cho Yu of the Chungbuk National University, was held in Cheongju in 1995 as a satellite meeting to the 3 International Symposium on Physics of Magnetic Materials which took place in Seoul. It was then settled that the Seminar would be held annually. Accordingly, the following meetings were held in Warsaw (1996), Cracow (1997), again in Cheongju (1998), Seoul (1999) - just after the International Magnetics Conference INTERMAG 1999 in Kyongju, in Będlewo near Poznań (2000), and finally again in Warsaw (2002). In 2001, the seminar, which that time should have been held again in Poland, did not take place for reasons beyond the control of the organizers. The present, seventh Seminar, similarly to the previous ones, was based on ple nary sessions during which only invited lectures were presented. There were altogether 20 talks presented at the meeting, nine of them presented by the Korean participants, representing academic and research centers. The remaining eleven were given by the Polish attendees representing the universities and institutes of the Acad emy. Proceedings, issued as a special issue of Materials Science, contain 16 papers presented at the Seminar. The Seminar was attended not only by the invited scientists but also by numerous participants from various academic and research institutions in Poland. In our opinion, shared by a majority of the participants, the technical subject matter dealing with various facets of the fundamental and applied magnetics main tained a high standard. The majority of presentations were devoted to the hottest topics in magnetism being actually of the greatest interest of the worldwide commu nity of magneticians. The Seminar was indeed motivating for its participants, as was confirmed by numerous animated discussions held at the sessions and continued dur-.

(8) 8. ing the breaks. The meeting went on in an informal and friendly atmosphere providing relaxing conditions for such discussions. The success of the Seminar is undoubtedly due to all of its participants, but in particular to the invited lecturers. We would like to take this opportunity to express our hearty appreciation to all of them. We also would like to thank all our colleagues from the Institute of Physics and Polish Academy of Sciences for their willing assistance in all aspects of planning and running the Seminar. It was agreed at this meeting that the Seminar would be held not every year but every two years and that the next meeting will take place in Korea in 2004. We sincerely hope that the participants of the Joint Seminar will have a good chance to meet again in 2004, this time in Korea. Henryk K. Lachowicz, Jang-Roh Rhee, Wojciech Suski.

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