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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.3
- 수록면
- 15 - 18 (4page)
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초록· 키워드
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We have studied the TiO₂ doping effects on the flux pinning behavior of an MgB₂ superconductor synthesized by the in-situ solid-state reaction. From the field-cooled and zero-field-cooled temperature dependences of magnetization, the reversible-irreversible transition of TiO₂-doped MgB₂ was determined in the H-T diagram (the temperature dependence of upper critical magnetic field and irreversibility line). For comparison, the similar measurements are also obtained from SiC-doped MgB₂. The critical current density was estimated from the width of hysteresis loops in the framework of Bean’s model at different temperatures. The obtained results manifest that nano-scale TiO₂ inclusions served as effective pinning centers and lead to the enhanced upper critical field and critical current density. It was concluded that the grain boundary pinning mechanism was realized in a TiO₂-doped MgB₂ superconductor.
목차
1. Introduction
2. Experimental Techniques
3. Result and Discussions
4. Conclusions
Acknowledgement
References
참고문헌 (13)
참고문헌 신청
1. [학술지(정기간행물)] - J. Nagamatsu / 2001 / / Nature 410 : 63 ~
2. [학술지(정기간행물)] - C. Giovannella / 1987 / / Europhys. Lett 4 : 109 ~
3. [학술지(정기간행물)] - X. Z. Liao / 2003 / / J. Appl. Phys 93 : 6208 ~
4. [학술지(정기간행물)] - S. H. Zhou / 2003 / / Physica C 387 : 321 ~
5. [학술지(정기간행물)] - S. X. Dou / 2002 / / Appl. Phys. Lett 81 : 3419 ~
2. [학술지(정기간행물)] - C. Giovannella / 1987 / / Europhys. Lett 4 : 109 ~
3. [학술지(정기간행물)] - X. Z. Liao / 2003 / / J. Appl. Phys 93 : 6208 ~
4. [학술지(정기간행물)] - S. H. Zhou / 2003 / / Physica C 387 : 321 ~
5. [학술지(정기간행물)] - S. X. Dou / 2002 / / Appl. Phys. Lett 81 : 3419 ~
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UCI(KEPA) : I410-ECN-0101-2012-428-004224550