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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.3
- 수록면
- 6 - 11 (6page)
이용수
초록· 키워드
오류제보하기
The magnetic anisotropy energy (MAE) and the saturation magnetization Bs of (110) FenCon heterostructures with n = 1, 2, and 3 are investigated in first-principles within the density functional theory by using the precise full-potential linearized augmented plane wave (FLAPW) method. We compare the results employing two different exchange correlation potentials, that is, the local density approximation (LDA) and the generalized gradient approximation (GGA), and include the spin-orbit coupling interaction of the valence states in the second variational way. The MAE is found to be enhanced significantly compared to those of bulk Fe and Co and the magnetic easy axis is in-plane in agreement with experiment. Also the MAE exhibits the in-plane angle dependence with a two-fold anisotropy showing that the [1Ī0] direction is the most favored spin direction. We found that as the periodicity increases, (ⅰ) the saturation magnetization Bs decreases due to the reduced magnetic moment of Fe far from the interface, (ⅱ) the strength of in-plane preference of spin direction increases yielding enhancement of MAE, and (ⅲ) the volume anisotropy coefficient decreases because the volume increase outdo the MAE enhancement.
목차
1. Introduction
2. Methodology
3. Results and Discussion
4. Conclusion
References
참고문헌 (15)
참고문헌 신청
D. Weller and A. Moser, IEEE Trans. Magn. 35, 4423 (1999).
A. J. Minnich, M. S. Dresselhaus, Z. F. Ren, and G. Chen, Energy Environ. Sci. 2, 466 (2009).
R. M. Bozorth, Ferromagnetism, Van Nostrand, New York (1951).
T. K. Kim and M. Takahashi, Appl. Phys. Lett. 20, 492 (1972).
D. Weller, A. Moser, L. Folks, M. E. Best, W. Lee, M. Toney, M. Schwickert, J. U. Thiele, and M. Doerner, IEEE Trans. Magn. 36, 10 (2000).
A. J. Minnich, M. S. Dresselhaus, Z. F. Ren, and G. Chen, Energy Environ. Sci. 2, 466 (2009).
R. M. Bozorth, Ferromagnetism, Van Nostrand, New York (1951).
T. K. Kim and M. Takahashi, Appl. Phys. Lett. 20, 492 (1972).
D. Weller, A. Moser, L. Folks, M. E. Best, W. Lee, M. Toney, M. Schwickert, J. U. Thiele, and M. Doerner, IEEE Trans. Magn. 36, 10 (2000).
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UCI(KEPA) : I410-ECN-0101-2016-428-002656016