Title :
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
fDate :
7/1/2001 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
