Size and shape evolution of embedded single-crystal α-Fe nanowires -: art. no. 203110

被引：15

作者：

Mohaddes-Ardabili, L ^{[1
]}

Zheng, H

Zhan, Q

Yang, SY

Ramesh, R

Salamanca-Riba, L

Wuttig, M

Ogale, SB

Pan, X

机构：

[1] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

[2] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[4] Univ Maryland, Ctr Superconduct Res, Dept Phys, College Pk, MD 20742 USA

[5] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 20期

关键词：

D O I：

10.1063/1.2128480

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The size and shape evolution of embedded ferromagnetic alpha-Fe nanowires is discussed. The alpha-Fe nanowires are formed by pulsed-laser deposition of La0.5Sr0.5FeO3-x on single-crystal SrTiO3 (001) substrate in reducing atmosphere. The average diameter of the nanowires increases from d approximate to 4 to 50 nm as the growth temperature increases from T=560 to 840 degrees C. Their in-plane shape evolves from circular to octahedral and square shape with [110] facets dominating as the growth temperature increases. A fitting to a theoretical calculation shows that the circular shape is stable when the diameter of the nanowires is smaller than 8 nm. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

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