Effect of Pt buffer layer on crystal structure and magnetic properties of hexagonal barium ferrite films

被引：3
|
作者：
Zheng, H. [1 ]
Zheng, L. [1 ]
Zheng, P. [1 ]
Deng, J. X. [1 ]
Ying, Z. H. [1 ]
Qin, H. B. [1 ]
机构：
[1] Hangzhou Dianzi Univ, Inst Electron Device & Applicat, Hangzhou 310018, Zhejiang, Peoples R China
来源：
MATERIALS LETTERS | 2017年 / 190卷
关键词：
Magnetic materials; Thin films; X-ray techniques; TEMPERATURES;
D O I：
10.1016/j.matlet.2017.01.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Hexagonal barium ferrite films have been deposited on Pt(111)/Al2O3(0001) substrates by pulsed laser deposition. The influence of Pt buffer layer on the crystal structure and magnetic properties of barium ferrite film has been studied. X-ray diffraction 0-20 reveals the crystallization temperature of film is decreased by the 20 nm-thick Pt buffer layer. Furthermore, pole figure analysis shows that the orientation of films is greatly improved by Pt buffer layer. Magnetic hysteresis loops represent the saturation magnetization (M-s) and uniaxial anisotropy field (H-k) are greatly depended on the Pt buffer layer. Consequently, BaM film with 20 nm Pt buffer layer have Ms of 358 emu/cm(3) and Hk of 16.7 kOe which are comparable with the theoretical value of BaM bulk. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：263 / 265
页数：3
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