| 제일원리를 이용한 스트론튬 페라이트의 자기적 특성 연구 |
| 육영진, 정용재1, 임종인 |
요업(세라믹)기술원 시뮬레이션센터
1한양대학교 신소재공학과 |
| Ab Initio Study for the Magnetic Properties of Strontium Ferrite SrFe12O19 |
| Young-Jin Yook, Yong-Chae Chung1, Jong-In Im |
Simulation Center for Fine Ceramics, KICET
1Department of Materials Science and Engineering, Hanyang University |
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| ABSTRACT |
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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. |
| Key words:
Ab initio, First principles, Strontium ferrite, Electronic struture, Magnetic moment |
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