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Structure Analysis and Local Magnetic Parameters of Magnetoresistance Tunnel Junctions
Cheol Gi Kim1, Chong-Oh Kim,1, Yongkang Hua1, J. Kanak2, T. Stobiecki,2, S. Ogata,3, M. Tsunoda3 and M. Takahashi3
1Department of Materials Engineering, Chungnam National University, Taejon, Korea
2
Department of Electronics, University of Mining and Metallurgy, Krakow, Poland
3Department of Electronic Engineering, Tohoku University, Sendai, Japan
Magnetic Properties of Fe/Si and Co/Si Multilayers
T. Luciński1, M. Kopcewicz2, A. Hütten3, H. Brückl3, S. Heitmann3, T. Hempel3 and G. Reiss3
1Institute of Molecular Physics, Polish Academy of Sciences, Poznań, Poland
2Institute of Electronic Materials Technology, Warsaw, Poland
3Faculty of Physics, University of Bielefeld, Bielefeld, Germany
Rotational Anisotropy in Exchange-biased NiFe/FeMn Bilayers
Do-Guwn Hwang
Department of Computer and Electronic Physics, Sangji University, Korea
Exchange Coupling Field in Top, Bottom, and Dual Type IrMn Spin Valves Coupled to CoFe
J. Y. Hwang and J. R. Rhee
Department of Physics, Sookmyung Women's University, Korea
Abstract
A comparative study of Co75Fe25/Ir22Mn78 exchange biased top, bottom, and dual type spin valves is presented. IrMn pinned spin valves were prepared by dc magnetron sputtering onto thermally oxidized Si (111) substrates at room temperature under a magnetic field of about 100 Oe. For as-deposited top type spin valves the magnetoresistance (MR) ratio and exchange coupling field (Hex) were 5.6% and 430 Oe, respectively. For bottom IrMn based spin valves the Hex values are much higher (Hex= 1180 Oe) while MR ratio (3.6%) is reduced with respect to top spin valves. The blocking temperatures (TB) of the top and bottom SV were 250 °C and 270 °C, respectively. The results concerning magnetic properties together with structural investigations suggest that Hex is mainly dependent on the quality of fcc (111) crystalline texture while MR ratio is sensitive to both crystalline texture and interface roughness. Dual type spin valves, with MR ratio of 7.6% and Hex of 850/510 Oe, showed two exchange loops due to the differences in Hex between the top and bottom pinning layers.
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Download article (PDF)The Effect of Underlayers on Grain Orientation and Magnetic Properties of Barium-ferrite Thin Film
Dong Hyoun Kim1, In Tak Nam1, Yang Ki Hong2
1Kangwon National University, Chunchon, Korea
2University of Idaho, Moscow, USA
Effective Magnetostriction in Nanocrystalline Alloys
A. ¦lawska-Waniewska
Institute of Physics, Polish Academy of Sciences, Warszawa, Poland
Micromagnetic Simulation of Multiphase Nanocrystalline Material with Different Boundary Conditions
O. Nedelko1, A. ¦lawska-Waniewska1, Y. Labaye2
1Institute of Physics, Polish Academy of Sciences, Warsaw, Poland
2Laboratoire de Physique de l'Etat Condensé, Université du
Maine, Mans, France
Influence of In Dilution Level on Magnetic Mroperties and Photoconductivity of Cd1-yCr2-2xIn2x+ySe4 Magnetic Semiconductors
B.T. Cięciwa, L. J. Maksymowicz, M. Lubecka, H. Jankowski, J. Sokulski, Z. Sobków
Department of Electronics, University of Mining and Metallurgy, Kraków, Poland
Magnetic Properties of the RMn12-xTx Alloys in High Magnetic Field #
W. Suski1,2, B. Belan3, A. Gilewski1, T. Mydlarz1, K. Wochowski2
1International Laboraratory of High Magnetic Fields and Low Temperatures, Wrocław, Poland
2Polish Academy of Science, W.Trzebiatowski Institute of Low Temperature and Structure Research, Wrocław, Poland
3Department of Inorganic Chemistry, Ivan Franko National University of L'viv, L'viv, Ukraine
High Frequency Magneto-Impedance Effect in Glass-Coated Amorphous Co83.2 B3.3 Si5.9 Mn7.6 Microwires
Heebok Lee2, Yong-Seok Kim1, Seong-Cho Yu2
1Department of Physics Education, Kongju National University, Kongju, Korea
2Department of Physics Chungbuk National University, Chongju, Korea
Large Magnetocaloric Effect in Perovskite Manganites: MagneticEntropy Changes Above 300 K
Manh-Huong Phan1, Seong-Cho Yu1, A.N. Ulyanov1,2 and H.K. Lachowicz3
Department of Physics, Chungbuk National University, Cheongju, Korea
Donetsk Physico-Technical Institute of National Academy of Sciences, Donetsk, Ukraine
Institute of Physics, Polish Academy of Science, Warszawa, Poland
Effects of an External Magnetic Field on the Perpendicular Magnetic Anisotropy of Electrodeposited Micro-patterned Arrays
W. Y. Jeung, D. H. Choi, and K. H. Lee
Metal Processing Research Center, Korea Institute of Science and Technology,
Seoul, Korea,
Magnetometry of Monoatomic Layers and Spin Electronics Elements
J. Wrona, T. Stobiecki, M. Czapkiewicz, R. Rak
Department of Electronics, University of Mining and Metallurgy, Kraków, Poland
Magnetism of Nanocrystalline and Bulk FexNi23-xB6 (x=0, 1, 22 and 23) Alloys -- Experiment and Theory
B. Idzikowski and A. Szajek
Institute of Molecular Physics, Polish Academy of Sciences, Poznań, Poland
The Effect of Axial Dc-field on Transverse Permeability in Co-based Metallic Glass Ribbons
H. K. Lachowicz1, M. KuĽmiński1, Seong-Cho Yu2
1Institute of Physics, Polish Academy of Sciences, Warszawa, Poland
2Department of Physics, Chungbuk National University, Chongju, Korea
Microstructure and Magnetic Properties of NdFeB Magnets Fabricated by Current-Applied Pressure-Assisted Process
Y.B. Kim1, H.T. Kim1,S.H. Cho1,2, G.A. Kapustin3
1Korea Research Institute of Standards and Science, Korea
2Chungnam National University, Korea
3Kurchatov Institute, Russia
