Microstructure of Nd-Fe-B films [and magnetic properties]

Author

Tsai, Jai-Lin ; Chin, Tsung-Shune ; Yao, Yeong-Der ; Sun, Zhi-gang ; Shen, Bao-Gen ; Kronmüller, H.

Author_Institution

Dept. of Mater. Sci. & Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2582

Lastpage

2584

Abstract

Perpendicular-anisotropic Nd-Fe-B films can be obtained as-deposited at high temperature. High deposition temperatures enhance the growth of columnar grain structure. Isotropic Nd-Fe-B films were obtained by deposition at room temperature followed by post annealing in high vacuum. Two kinds of microstructure were observed in cross-sectional TEM micrographs. Magnetic domains of nanocrystalline Nd-Fe-B films were investigated by MFM to explain the magnetization reversal behavior

Keywords

X-ray diffraction; annealing; boron alloys; coercive force; crystallites; demagnetisation; ferromagnetic materials; grain size; iron alloys; magnetic domains; magnetic force microscopy; magnetic thin films; magnetisation reversal; nanostructured materials; neodymium alloys; permanent magnets; perpendicular magnetic anisotropy; sputtered coatings; texture; transmission electron microscopy; MFM; Nd-Fe-B; XRD; coercivity; columnar grain structure; cross-sectional TEM; crystallites; demagnetization; grain size; high deposition temperature; isotropic films; magnetic domains; magnetic thin films; magnetization reversal; microstructure; nanocrystalline films; perpendicular-anisotropy films; room temperature deposition; sputtered films; texture; Magnetic domains; Magnetic films; Magnets; Microstructure; Neodymium; Physics; Plasma temperature; Sputtering; Substrates; Temperature distribution;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951242

Filename

951242