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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
- 2017.3
- 수록면
- 1 - 6 (6page)
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초록· 키워드
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Magnetic properties of CoPt nanoparticles (average size = 2.1 nm) encapsulated in synthesized protein shell have been investigated with SQUID (Superconducting Quantum Interference Device) magnetometer and analyzed by the recently developed non-equilibrium magnetization calculation by our group [T. H. Lee et al., Phys. Rev. B 90, 184411 (2014)]. Field dependence of magnetization measured at 2 K was successfully analyzed with modified Langevin function. In addition, small hysteresis loops having the coercive field of 890 Oe were observed at 2 K. Temperature dependence of magnetization has been measured with zero field cooled (ZFC) and field cooled (FC) protocol with slightly modified sequence in accordance with non-equilibrium magnetization calculation. The analysis on the M vs. T data revealed that the anisotropy energy barrier distribution is found to be very different from the log-normal distribution found in a size distribution. Zero temperature coercive field and Bloch coefficient have also been extracted from the analysis and the validity of those values is checked.
목차
1. Introduction
2. Sample
3. Experiment
4. Results and Discussion
5. Summary
References
참고문헌 (14)
참고문헌 신청
[학술지(정기간행물)] - B. D. Terris / 2005 / / J. Phys. D: Appl. Phys. 38 : R199 ~
[학술지(정기간행물)] - B. Warne / 2000 / / IEEE Trans. Magn 36 : 3009 ~
[학술지(정기간행물)] - H. B. Na / 2009 / / Adv. Mater 21 : 2133 ~
[학술지(정기간행물)] - C. D. Kaddi / 2013 / / Nanomedicine 8 : 1323 ~
[학술지(정기간행물)] - S. M. Morgan / 2011 / / J. Appl. Phys 109 : 07B305-1 ~
[학술지(정기간행물)] - B. Warne / 2000 / / IEEE Trans. Magn 36 : 3009 ~
[학술지(정기간행물)] - H. B. Na / 2009 / / Adv. Mater 21 : 2133 ~
[학술지(정기간행물)] - C. D. Kaddi / 2013 / / Nanomedicine 8 : 1323 ~
[학술지(정기간행물)] - S. M. Morgan / 2011 / / J. Appl. Phys 109 : 07B305-1 ~
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UCI(KEPA) : I410-ECN-0101-2017-428-002313674