Magnetic properties of ball-milled FeAl nanograins

被引：7

作者：

Kiss, LF

Kaptás, D

Balogh, J

Bujdosó, L

Gubicza, J

Kemény, T

Vincze, I

机构：

[1] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

[2] Eotvos Lorand Univ, Dept Solid State Phys, H-1518 Budapest, Hungary

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2004年 / 201卷 / 15期

关键词：

D O I：

10.1002/pssa.200405498

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ball milled alloys were investigated by X-ray diffraction, magnetic measurements and Mossbauer spectroscopy. No magnetic saturation is observed up to 5 T and neither the magnetization nor the Mossbauer measurements show a well-defined phase transition but a gradual disappearance of the magnetism with increasing temperature. The hyperfine field distributions and the X-ray grain size data enable the identification of Fe atoms with magnetic moments as some atomic layers' thick surface of the nonmagnetic nanometric Fe-Al grains. The unusual magnetic behaviour is attributed to the large magnetic anisotropy of the low dimensional magnetic surfaces.

引用

页码：3333 / 3337

页数：5

共 13 条

[1] Comment on "Magnetically ordered fcc structure at the relaxed grain boundaries of pure nanocrystalline Fe" [J].