Strain-induced magnetization change in patterned ferromagnetic nickel nanostructures
-
- Alexandre Bur
- University of California 1 Department of Mechanical and Aerospace Engineering, , Los Angeles, California 90095, USA
-
- Tao Wu
- University of California 1 Department of Mechanical and Aerospace Engineering, , Los Angeles, California 90095, USA
-
- Joshua Hockel
- University of California 1 Department of Mechanical and Aerospace Engineering, , Los Angeles, California 90095, USA
-
- Chin-Jui Hsu
- University of California 1 Department of Mechanical and Aerospace Engineering, , Los Angeles, California 90095, USA
-
- Hyungsuk K. D. Kim
- University of California 2 Department of Materials Science and Engineering, , Los Angeles, California 90095, USA
-
- Tien-Kan Chung
- National Chiao Tung University 3 Department of Mechanical Engineering, , Hsinchu, Taiwan 300
-
- Kin Wong
- University of California 4 Department of Electrical Engineering, , Los Angeles, California 90095, USA
-
- Kang L. Wang
- University of California 4 Department of Electrical Engineering, , Los Angeles, California 90095, USA
-
- Gregory P. Carman
- University of California 1 Department of Mechanical and Aerospace Engineering, , Los Angeles, California 90095, USA
書誌事項
- 公開日
- 2011-06-15
- DOI
-
- 10.1063/1.3592344
- 公開者
- AIP Publishing
この論文をさがす
説明
<jats:p>We report strain-induced coercive field changes in patterned 300 × 100 × 35 nm3 Ni nanostructures deposited on Si/SiO2 substrate using the magnetoelastic effect. The coercive field values change as a function of the applied anisotropy strain (∼1000 ppm) between 390 and 500 Oe, demonstrating that it is possible to gradually change the coercive field elastically. While the measured changes in coercive field cannot be accurately predicted with simple analytical predictions, fairly good agreement is obtained by using a micromagnetic simulation taking into account the influence of nonuniform strain distribution in the Ni nanostructures. The micromagnetic simulation includes a position dependant strain-induced magnetic anisotropy term that is computed from a finite element mechanical analysis. Therefore, this study experimentally corroborates the requirement to incorporate mechanical analysis into micromagnetic simulation for accurately predicting magnetoelastic effects in patterned ferromagnetic nanostructures.</jats:p>
収録刊行物
-
- Journal of Applied Physics
-
Journal of Applied Physics 109 (12), 2011-06-15
AIP Publishing