지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.3
- 수록면
- 19 - 22 (4page)
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초록· 키워드
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ZnO nanotips, grown on c-Al₂O₃ and quartz, were implanted variously with 200 keV Fe or Mn ions to a dose level of 5 × 10<SUP>16</SUP> ㎝?². The magnetic properties of these samples were measured using a superconducting quantum interference device (SQUID) magnetometer. Fe-implanted ZnO nanotips grown on c-Al₂O₃ showed a coercive field width of 209 Oe and a remanent field of 12% of the saturation magnetization (2.3 × 10?? emu) at 300 K for a sample annealed at 700 ℃ for 20 minutes. The field-cooled and the zero-field-cooled magnetization measurements also showed evidence of ferromagnetism in this sample with an estimated Curie temperature of around 350 K. The Mn-implanted ZnO nanotips grown on c-Al₂O₃ showed superparamagnetism resulting from the dominance of a spin-glass phase. The ZnO nanotips grown on quartz and implanted with Fe or Mn showed signs of ferromagnetism, but neither was consistent.
목차
1. Introduction
2. Experiment
3. Results and Discussion
4. Conclusions
Acknowledgments
References
참고문헌 (11)
참고문헌 신청
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2. [학술지(정기간행물)] - K. Ando / 2001 / / J. Appl. Phys 89 : 7284 ~
3. [학술지(정기간행물)] - I. Satoh / 200 / / Appl. Surf. Sci 216 : 603 ~
4. [학술지(정기간행물)] - D.A. Schwartz / 2004 / / Appl. Phys. Lett 85 : 1395 ~
5. [학술지(정기간행물)] - D.L. Hou / 2007 / / Appl. Phys. Lett 102 : 033905 ~
2. [학술지(정기간행물)] - K. Ando / 2001 / / J. Appl. Phys 89 : 7284 ~
3. [학술지(정기간행물)] - I. Satoh / 200 / / Appl. Surf. Sci 216 : 603 ~
4. [학술지(정기간행물)] - D.A. Schwartz / 2004 / / Appl. Phys. Lett 85 : 1395 ~
5. [학술지(정기간행물)] - D.L. Hou / 2007 / / Appl. Phys. Lett 102 : 033905 ~
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UCI(KEPA) : I410-ECN-0101-2009-428-016484772