한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제44권5호
  • /
  • Pages.166-172
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  • 2007
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  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
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제일원리를 이용한 스트론튬 페라이트의 자기적 특성 연구

Ab Initio Study for the Magnetic Properties of Strontium Ferrite SrFe12O19

  • 육영진 (요업(세라믹)기술원 시뮬레이션센터) ;
  • 정용재 (한양대학교 신소재공학과) ;
  • 임종인 (요업(세라믹)기술원 시뮬레이션센터)
  • 발행 : 2007.05.31
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초록

In this study, magnetic properties of the strontium ferrite were theoretically investigated by Ab initio (first principle) method. The influences of various additives on the magnetic properties of the strontium ferrite were analyzed to designed new composition of the strontium ferrite system with high magnetic characteristics. As shown in the results, the total magnetization of the strontium ferrite was $42.55M_B$. Based on the DOS results, the magnetic characteristics of the strontium ferrite were mainly influenced by Fe atoms at 6 positions in the unit cell. Also the La-Mn strontium ferrite has the superior magnetic property than the Mn strontium ferrite.

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참고문헌

  1. E. P. Wohlfarth, 'Ferromagnetic Materials :A Handbook on the Properties of Magnetically Ordered Substances,' Vol. 3 pp. 3-36, North-Holland Publishing Company, Amsterdam, 1982
  2. J. Smit and H. P. J. Wijn, 'Ferrites :Physical Properties of Ferrimagnetic Oxides in Relation to Their Technical Applications,' pp. 15-29, Philips Technical Library, Eindhoven, 1965
  3. K. Ohno, K. Esfarjani, and Y. Kawazoe, 'Computational Materials Science : From Ab Initio to Monte Carlo Methods,' pp. 7-138, Springer, Berlin, 1999
  4. G. Kresse and J. Furthmuller, 'VASP the Guide,' pp. 33- 105, Vienna, 2005
  5. C. M. Fang, F. Kools, R. Metselaar, G. de With, and R. A. de Groot, 'Magnetic and Electronic Properties of Strontium Hexaferrite SrFe_{12}O_{19} from First-Principles Calculations,' J. Phy.:Condens. Matter, 15 6229-37 (2003) https://doi.org/10.1088/0953-8984/15/36/311
  6. O. P. Aleshko, M. K. Faek, and I. I. Yamzin, 'A Neutron Diffraction Study of the Structure of Magnetoplumbite,' Kristallografiya, 14 447-49 (1969)
  7. E. Kaxiras, 'Atomic and Electronic Structure of Solids,' pp. 238-281, Cambridge University Press, New York, 2003 https://doi.org/10.2277/0521523397
  8. Y. Byun and J. I. Lee, 'First-Principles Study on the Magnetism and Electronic Structure of Fe Nanostripes,' J. Kor. Mag. Soc., 16 [5] 229-33 (2006) https://doi.org/10.4283/JKMS.2006.16.5.229
  9. P. M. Tedrow and R. Meservey, 'Spin Polarization of Electrons Tunneling from Films of Fe, Co, Ni, and Gd,' Phys. Rev. B, 7 318-26 (1973) https://doi.org/10.1103/PhysRevB.7.318