• Proceedings of the Korean Magnestics Society Conference
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• 2009.05a
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• pp.55-56
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• 2009

• Proceedings of the Korean Magnestics Society Conference
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• 2013.12a
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• pp.61-62
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• 2013

• Korean Journal of Materials Research
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• v.7 no.2
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• pp.136-139
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• 1997

증착법을 이용하여 $Sm(Co_{1-x}Fe_{x})$ 및 $Sm_{2}(Co_{1-x}Fe_{x})_{17}$(X=0, 0.3,0.5,0.7)박막을 제작하여 조성변화 및 열처리 온도 변화에 따른 자기적 성질의 변화에 대해 검토 하였다. Fe의 양이 증가 할 수록 포화자화 값은 증가 하지만 각형비는 감소하였고 보자력도 약간 감소하는 경향을 보였다. $Sm(Co_{0.5}Fe_{0.5})_{5}$ 조성박막의 경우, $800^{\circ}C$, 20분 열처리에 의해 약 6.1MGOe의 $(BH)_{max}$을 보였다. 본 박막자석의 자기적 성질의 증대를 위해서는 시료제작 방법의 개선이 필요하다고 사료 된다.

• Journal of the Korean Magnetics Society
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• v.20 no.4
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• pp.153-159
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• 2010

Magnetic properties of basic rocks samples distributed in the seaside area of Ulleung island were investigated by means of X-ray fluorescence spectroscopy (XRF), M$\ddot{o}$ssbauer spectroscopy and SQUID magnetometer. We found that samples were typical basic rock which had the total amount of iron compounds varies from 10.6 wt% to 14.5 wt% depending on the different regions by XRF. The M$\ddot{o}$ssbauer spectra and magnetic hysteresis behaviors of the samples show ferromagnetic properties due to hematite. Also, temperature dependences of magnetization at applied magnetic field of 1 T for samples show magnetic transitions at 41 K~60 K.

• Proceedings of the Korean Magnestics Society Conference
• /
• 1997.05a
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• pp.36-37
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• 1997

• Proceedings of the Korean Magnestics Society Conference
• /
• 1997.05a
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• pp.32-33
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• 1997

• Proceedings of the Korean Magnestics Society Conference
• /
• 1998.05a
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• pp.122-123
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• 1998

• Proceedings of the Korean Magnestics Society Conference
• /
• 1993.11a
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• pp.86-87
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• 1993

• Proceedings of the Korean Magnestics Society Conference
• /
• 1994.10a
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• pp.18-19
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• 1994

• Proceedings of the Korean Magnestics Society Conference
• /
• 1997.11a
• /
• pp.26-27
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• 1997