Iron films deposited on porous alumina substrates

被引：3

作者：

Yamada, Yasuhiro ^{[1
]}

Tanabe, Kenichi ^{[1
]}

Nishida, Naoki ^{[1
]}

Kobayashi, Yoshio ^{[2
,3
]}

机构：

[1] Tokyo Univ Sci, Shinjuku Ku, 1-3 Kagurazaka, Tokyo 1628601, Japan

[2] Univ Electrocommun, 1-5-1 Chofugaoka, Chofu, Tokyo 1828585, Japan

[3] RIKEN, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

来源：

HYPERFINE INTERACTIONS | 2016年 / 237卷

关键词：

Iron film; Porous alumina; Gamma-iron; Alpha-iron; LASER DEPOSITION; PARTICLES; FABRICATION; ORIENTATION; OXIDATION; CATALYSTS;

D O I：

10.1007/s10751-016-1313-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Iron films were deposited on porous alumina substrates using an arc plasma gun. The pore sizes (120 - 250 nm) of the substrates were controlled by changing the temperature during the anodic oxidation of aluminum plates. Iron atoms penetrated into pores with diameters of less than 160 nm, and were stabilized by forming gamma-Fe, whereas alpha-Fe was produced as a flat plane covering the pores. For porous alumina substrates with pore sizes larger than 200 nm, the deposited iron films contained many defects and the resulting alpha-Fe had smaller hyperfine magnetic fields. In addition, only a very small amount of gamma-Fe was obtained. It was demonstrated that the composition and structure of an iron film can be affected by the surface morphology of the porous alumina substrate on which the film is grown.

引用

页数：9

共 16 条

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