Wroclaw University of Technology De Gruyter Open Materials Science
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Back Issues


The section contains back issues papers
of Materials Science-Poland.


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

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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

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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

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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

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Effective Magnetostriction in Nanocrystalline Alloys

A. ¦lawska-Waniewska
Institute of Physics, Polish Academy of Sciences, Warszawa, Poland

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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

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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

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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

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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

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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,

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Rotational Anisotropy in Exchange-biased NiFe/FeMn Bilayers

Do-Guwn Hwang
Department of Computer and Electronic Physics, Sangji University, Korea

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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

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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

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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

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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

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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

Abstract

The measurements of the giant magneto-impedance (GMI) were carried out in the amorphous Co83.2B3.3Si5.9Mn7.6 micro-wires at high frequency range from 100 MHz up to 1 GHz of an accurrent flowing along the wire and at varying axial dc-magnetic field in its range of ±120 Oe. The wires, about 15μm in diameter, were fabricated by a glass-coated melt spinning technique. The shape of the impedance curves plotted vs. a dc-field is changing dramatically with the frequency. The phase angle was also strongly dependent on this field. The maximum value of GMI, around 250%, was reached at the frequency of about 500 MHz. The external dc-magnetic field changes the circumferential permeability as well as the penetration depth, both in turn change the impedance of the sample. The increments of GMI at high frequency can be understood in terms of the LC- resonance phenomena. The sudden change of the phase angle, as large as 180°, evidenced the occurrence of the resonance at a given intensity of the external dc-field.

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