• Journal of the Korean Magnetics Society
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• v.12 no.3
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• pp.83-87
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• 2002

• Journal of Magnetics
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• v.3 no.4
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• pp.112-115
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• 1998

Possible sources of the stress-anneal-induced anisotropy in FINEMET-type magnets are reviewed and discussed resulting in a conclusion that the most probable origin of this anisotropy is the atomic pair directional ordering. It is also evidence that the anisotropy considered is usually of an easy-plane type.

• Journal of Magnetics
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• v.8 no.1
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• pp.45-49
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• 2003

We present a brief review of recent experimental and theoretical results on new magneto-optical phenomena in magnetic granular metal-insulator alloys with tunnel-type magnetoresistance, focusing on magnetorefractive effect and cubic nonlinear magneto-optics.

• Journal of Magnetics
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• v.6 no.4
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• pp.119-121
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• 2001

Monte Carlo simulation was employed to study the phase transition in the classical Heisenberg ferromagnet with variable interlayer interactions. The measured transition temperatures show a strong logarithmic dependence on J/J'where J and J'are the intralayer and the interlayer exchange interaction, respectively. The results were compared with the theoretical expectations and an empirical formula for the critical coupling was stained.

• Journal of Magnetics
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• v.4 no.1
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• pp.22-25
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• 1999

Recently we reported the evolutionary transition from the positive magnetoresistance to the negative was discovered in the transverse configuration as the thickness of permalloy film increases. The discovered peculiarities of positive magnetoresistance phenomenal were explained in the framework of the uniform rotation model of the film magnetization reversal.

• Journal of Magnetics
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• v.2 no.2
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• pp.55-57
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• 1997

A mutual-inductance bridge type ac magnetic susceptibility measurement system was built in our laboratory. With addition of a phase-sensitive prestage, it was simple to implement and provided a high signal-to-noise (S/N) ratio.

• Journal of Magnetics
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• v.2 no.4
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• pp.123-125
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• 1997

We have studied a series of I2-doped poly [2-buthoxy-5-methoxy-1, 4-phenylenevinylene] (PBMPV) conducting polymers by means of electron paramagnetic resonance (EPR) measurements. In this work, the EPR linewidth and spin density were obtained from the EPR intensity and studied as a function of the degree of doping.

• Journal of the Korean Magnetics Society
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• v.6 no.2
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• pp.130-137
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• 1996

기술해설 "주요 해외시장 및 신 용도"(I)에 이어, 본고는 Nd-Fe-B계 소결자석의 핵심적인 용도로 제조되고 있는 PC drive용 voice coil motor와 전기자동차 모터용 소결자석과 수지본드자석의 핵심 용도인 CD ROM drive 및 향후 수지본드자석의 가장 큰 용도가 될 자동차 전장 소형모터 및 센서를 중심으로 기술하고자 한다.

• Journal of the Korean Magnetics Society
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• v.5 no.5
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• pp.583-588
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• 1995

Fe rich nanocrystals embedded in an amorphous magnetic matrix have been shown to exhibit outstanding soft magnetic properties. The cause of softness in the exchange coupling between the two-phases. In this paper some effects of the exchange coupling between the nanocrystals and the matrix are reviewed.

• The Transactions of the Korean Institute of Power Electronics
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• v.13 no.5
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• pp.396-402
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• 2008

This paper presents the structure and performance of a new Integrated magnetics-based transformer, which can be readily adapted to zero-voltage switching full bridge dc-to-dc converters. The proposed transformer features with two paralleled primary windings and a center-tapped secondary winding. The transformer can be fabricated on standard EE or EI cores where the primary and secondary windings are placed on the outer legs while the output filter inductor is wound on the middle leg. The performance of the proposed transformer is demonstrated with a 100 kHz 720 W experimental dc-to-dc converter which recorded a 92% conversion efficiency at 12 V output voltage.