التفاصيل البيبلوغرافية
| العنوان: |
Distinctive uniaxial magnetic anisotropy and positive magnetoresistance in (110)-oriented Fe3O4 films. |
| المؤلفون: |
Joonghoe Dho1 jhdho@knu.ac.kr, Byeong-geon Kim1, Sanghoon Ki1 |
| المصدر: |
Journal of Applied Physics. 2015, Vol. 117 Issue 16, p163904-1-163904-5. 5p. 1 Diagram, 4 Graphs. |
| مصطلحات موضوعية: |
*FERRIC oxide, *MAGNETIC anisotropy, *MAGNETORESISTANCE, *HYSTERESIS loop, *COERCIVE fields (Electronics) |
| مستخلص: |
Magnetite (Fe3O4) films were synthesized on (110)-oriented MgO, MgAl2O4, and SrTiO3 substrates for comparative studies of the substrates' effects on magnetic and magnetoresistance properties of the films. For the [-110] direction, the hysteresis loops of the Fe3O4 film on MgAl2O4 exhibited a good squareness with the largest coercivity of ∼1090 Oe, and the ratio of remanent magnetization to saturation magnetization was ∼0.995. For the [001] direction, positive magnetoresistance in weak magnetic fields was most distinct for the (110) SrTiO3 substrate with the largest lattice mismatch. Positive magnetoresistance in the (110) Fe3O4 films was presumably affected by imperfect atomic arrangements at anti-phase boundaries. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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