Controlling magnetic anisotropy in La0.7Sr0.3MnO3 nanostructures

被引：8
|
作者：
Wahler, M. [1 ]
Buettner, B. [1 ]
Blaschek, H. -H. [1 ]
Homonnay, N. [1 ]
Wid, O. [1 ]
O'Shea, K. J. [2 ]
McGrouther, D. [2 ]
MacLaren, D. A. [2 ]
Schmidt, G. [1 ,3 ]
机构：
[1] Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Germany
[2] Univ Glasgow, Sch Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland
[3] Univ Halle Wittenberg, IZM, D-06099 Halle, Germany
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 05期
基金：
英国工程与自然科学研究理事会;
关键词：
DOMAIN-STRUCTURE;
D O I：
10.1063/1.4863978
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have developed a chlorine based dry etching process for nanopatterning the ferromagnetic oxide La0.7Sr0.3MnO3 (LSMO). Large arrays of millions of identical structures have been fabricated from thin LSMO films by electron-beam lithography and reactive ion etching. SQUID magnetometry demonstrates that patterned nanostructures with lateral dimensions down to 100 nm retain their full magnetization and the Curie temperature of the bulk layer. In addition, their shape anisotropy is sufficient to overcome the crystalline anisotropy of the bulk. High resolution scanning transmission electron microscopy shows that crystallinity is preserved even at the edges of the nanostructures. (C) 2014 AIP Publishing LLC.
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页数：4
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