THIN-FILMS OF BARIUM FERRITE WITH PERPENDICULAR MAGNETIC-ANISOTROPY PRODUCED BY LASER ABLATION DEPOSITION

被引：37

作者：

MASTERSON, HJ ^{[1
]}

LUNNEY, JG ^{[1
]}

COEY, JMD ^{[1
]}

ATKINSON, R ^{[1
]}

SALTER, IW ^{[1
]}

PAPAKONSTANTINOU, P ^{[1
]}

机构：

[1] QUEENS UNIV BELFAST,DEPT PURE & APPL PHYS,BELFAST BT7 1NN,ANTRIM,NORTH IRELAND

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 08期

关键词：

D O I：

10.1063/1.352880

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Barium ferrite thin films with perpendicular magnetic anisotropy have been prepared on heated (001) sapphire substrates by laser ablation deposition in an oxygen atmosphere using a KrF excimer laser. X-ray diffraction patterns reveal highly oriented films of the magnetoplumbite phase with a c-axis angular spread of 1.8-degrees. Scanning electron micrographs reveal that these films are polycrystalline with a crystallite size of 0.4 mum. There is no surface particulate contamination. The saturation magnetization was similar to bulk barium ferrite, and the coercivity was 145 mT. The magneto-optical properties of the films are compared with those derived from the optical and magneto-optical constants of the bulk material.

引用

页码：3917 / 3921

页数：5

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