한국자기학회:학술대회 개요집 (Proceedings of the Korean Magnestics Society Conference) (Proceedings of the Korean Magnestics Society Conference)
한국자기학회 (The Korean Magnetics Society)
- 반년간
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- 2233-9485(pISSN)
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- 2233-9574(eISSN)
과학기술표준분류
- 물리학 > 입자/장물리
한국자기학회 2005년도 동계학술연구발표회 및 2차 아시안포럼
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Ulyanov Alexander N.;Kim Jin-Sun;Kang Young-Min;Min Seong-Gi;Lee Kyu-Won;Yu Seong-Cho;Yoo Sang-Im 28
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Hwang Younghun;Choi Jeongyong;Hong Soon Cheol;Cho Sunglae;Choi Sungyoul;Park Hyun-Min;Lee Kyu-Won;Park Yongsup 62
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Sun Dongsheng;Hong Seongmin;Ha Nguyen Duy;Jin Lan;Jin Hanmin;Kim Cheolgi;Kim Chongoh;Gu Yu-Seong 68
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The resilience of the exchange bias (
$H_{EX}$ ) in ferromagnet / antiferromagnet bilayers is generally studied in terms of repeated hysteresis loop cycling or by protracted annealing under reversed field (training and long-term relaxation respectively). The stability of$H_{EX}$ is fundamental for practical application of exchange bias systems. In this paper we report measurements of training and relaxation in FeNi films coupled with the antiferromagnet FeMn. We show that$H_{EX}$ suppressed both by training and relaxation was partially recovered as soon as a field cycling for consecutive hysteresis loop measurement was stopped or the magnetization of the ferromagnet was switched back to the biased direction. -
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포항방사광가속기의 전자빔수명을 연장하기 위한 3차 하모닉 초전도 RF 공동기를 개발하고 있다. 저장링 빔물리 계산에 따르면 3차 하모닉 초전도 RF 공동기를 설치할 경우 점자빔의 수명이 약2.3배 증가하는 것으로 나타났다. 또 이 공동기를 설치할 경우 란다우 (Landau) 감쇄 (damping)에 의한 빔의 안정화도 개선되는 효과가 있다. 본 논문은 이것을 실현하기 위한 초전도 RF 공동기의 전자기장 분포와 고차원 전자장 계산을 통하여 최적의 공동기의 모양 결정과 설계 특성에 대한 것을 보고 하고자 한다.
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Kang Yeongju;Kwon Nayoung;Chang Joonyeon;Eom Jonghwa;Yi Hyunjung;Koo Hyun Cheol;Kim Hyungiun;Han Sukhee 116
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Xu Congkang;Chun Junghwan;Rho Keehan;Kim Dong Eon;Kim Beom Jim;Yoon Seokwon;Han Seong-Eok;Kim Ju-Jin 121
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Jung Donghwa;Eom Jonghwa;Chang Joonyeon;Koo Hyun Cheol;Yi Hyunjung;Ko Jae Beom;Park Wanghyun;Han Suk-Hee 126
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Joo Sungjung;Lee Jinseo;Back Ji-hyoun;Chung G. Y.;Hong Jinki;Rhie Kungwon;Lee B. C.;Park W. H.;Koo Hyuncheol;Shin Kyung-Ho 132
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Lee Young-min;Lee Byeong-Seon;Lee Chan-Gyu;Koo Bon-Heun;Shimada Y.;Kitakami O.;Okamoto S.;Miyazaki T. 154
Multi-layer film of$MgO/(FePt-B)_{50nm}/ MgO$ was deposited on Si(100) substrates by RF magnetron sputtering. The boron chips were uniformly placed oil tile FePt target. The boron content of thin film was found to be about 5, 10, 15, 25 and$33 at\%$ by using a CAMECA SX-51 wavelength dispersive spectroscopy (WDX). It is observed that X-ray diffraction patterns of FePt-B film by post-annealing exhibited a transformation from disordered fcc structure to ordered$Ll_0$ phase with fct structure from around$400^{\circ}C$ . By adding B, annealing temperature for ordering is about$200^{\circ}C$ lower than that of pure FePt. This remarkable decrease of the annealing temperature is closely related to the high diffusivities of Fe and Pt associated with the defects caused by movements of B atoms. The maximum coercivity(Hc) for FePt films was found to be${\~}$ 13 kOe after annealing at$600^{\circ}C$ for 1hr. -
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Jung Donghwa;Eom Jonghwa;Chang Joonyeon;Koo Hyun Cheol;Yi Hyunjung;Ko J. B.;Park Wanghyun;Han Suk-Hee 192
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Hwang J. Y.;Kim S. S.;Yim H. I.;Kim M. Y;Rhee J. R.;Chun B.S.;Kim Y. K.;Kim T. W.;Lee S.S.;Hwang D. G.;Yu S. C.;Lee H. B. 198
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Koo Hyun Cheol;Yi Hyunjung;Jung Donghwa;Ko J. B,;Yi Hyunjung;Eom Jonghwa;Chang Joonyeon;Han S. H. 209
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Bae Seongtae;Lee Sangwon;Takemura Y.;Jalil Mansoor B. A.;Yong Lian;Yan Xin;Yamashita K.;Yamada T.;Kim Chul-Sung 227