Magnetic domain structure of La0.7Sr0.3MnO3 nanoislands: Experiment and simulation
Magnetic domain structure of La0.7Sr0.3MnO3 nanoislands: Experiment and simulation
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DOI：
10.1063/1.3544510
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发表时间：
2011-04-01
影响因子：
3.2
通讯作者：
Suzuki, Yuri
中科院分区：
文献类型：
--
作者：
Kim, Eun Ji;Watts, John L. R.;Suzuki, Yuri
我们研究了尺寸在160 nm到720 nm量级的La0.7Sr0.3MnO3（LSMO）纳米岛的磁畴结构。畴结构的（001）取向的LSMO矩形纳米岛表现出单一和多个磁通闭合畴状态取决于纵横比。（110）取向的矩形纳米岛，其应变诱导的磁易轴平行于矩形的长轴，根据纵横比表现出单畴和双畴状态。(110)由于在锥形边缘处畴成核的明显抑制，具有类似纵横比的细长六边形岛均匀地呈现单畴状态。这些结果与面向对象的微磁框架模拟LSMO岛是一致的。(C)2011年美国物理学会。[doi：10.1063/1.3544510]
We have studied the magnetic domain structure of La0.7Sr0.3MnO3 (LSMO) nanoislands with dimensions on the order of 160 similar to 720 nm. Domain structures of (001)-oriented LSMO rectangular nanoislands exhibit single and multiple flux-closed domain states depending on aspect ratio. (110)-oriented rectangular nanoislands, with a strain-induced magnetically easy axis parallel to the long axis of the rectangle, exhibit single and two domain states depending on aspect ratio. (110) elongated hexagonal islands, with similar aspect ratios, uniformly exhibit single domain states due to the apparent suppression of domain nucleation at tapered edges. These results are consistent with object-oriented micromagnetic framework simulations of LSMO islands. (C) 2011 American Institute of Physics. [doi:10.1063/1.3544510]