Modulated Amorphous Alloy Films

1986 ◽  
Vol 77 ◽  
Author(s):  
C. L. Chien ◽  
S. H. Liou ◽  
M. Natan
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloy ◽  
Magnetic Surface ◽  
Anisotropy Constant ◽  
Thickness Dependence ◽  
Surface Anisotropy ◽  
Cross Sectional ◽  
Alloy Films

ABSTRACTWe have made modulated solids consisting of several hundred layers of a-Fe80Zr20/a-Ni30Nb70 in which the layer thicknesses are a few nanometers. The modulating nature of the sample and the flat growth of the layers are confirmed by cross sectional TEM. The layers of a-Ni30Nb70 are non-magnetic and serve as inert layers separating the magnetic a-Fe80Zr20 layers. By varying the thickness of the a-FegoZr20 layers, the thickness dependence of the magnetic properties has been studied. The sign of the magnetic surface anisotropy constant has been determined.

scholarly journals Observation of thickness dependence of magnetic surface anisotropy in ultrathin amorphous films

1990 ◽  
Vol 64 (15) ◽  
pp. 1820-1823 ◽  
Author(s):  
R. J. Hicken ◽  
G. T. Rado ◽  
Gang Xiao ◽  
C. L. Chien
Keyword(s):  
Magnetic Surface ◽  
Thickness Dependence ◽  
Surface Anisotropy ◽  
Amorphous Films

Magnetic surface anisotropy and ferromagnetic resonance in a stress annealed FeNIB amorphous alloy

1987 ◽  
Vol 101 (1) ◽  
pp. 239-245 ◽  
Author(s):  
Z. Frait ◽  
D. Fraitová ◽  
N. Zakubova ◽  
P. Duhaj
Keyword(s):  
Amorphous Alloy ◽  
Ferromagnetic Resonance ◽  
Magnetic Surface ◽  
Surface Anisotropy

Thickness dependence of magnetic surface anisotropy in ultrathin amorphous films (abstract)

1990 ◽  
Vol 67 (9) ◽  
pp. 5683-5683
Author(s):  
R. J. Hicken ◽  
G. T. Rado ◽  
Gang Xiao ◽  
C. L. Chien
Keyword(s):  
Magnetic Surface ◽  
Thickness Dependence ◽  
Surface Anisotropy ◽  
Amorphous Films

Magnetic properties of amorphous alloy films of Fe with Gd, Tb, Dy, Ho, or Er

1978 ◽  
Vol 49 (3) ◽  
pp. 1208-1215 ◽  
Author(s):  
Y. Mimura ◽  
N. Imamura ◽  
T. Kobayashi ◽  
A. Okada ◽  
Y. Kushiro
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloy ◽  
Alloy Films

Preparation and magnetic properties of CoGd amorphous alloy films by the electroplating method

1988 ◽  
Vol 99 (1-2) ◽  
pp. 105-108 ◽  
Author(s):  
Norimiki Usuzaka ◽  
Hiroyuki Yamaguchi ◽  
Tohru Watanabe
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloy ◽  
Alloy Films

Magnetic Anisotropy of Epitaxial Co/Pt Superlattices

1991 ◽  
Vol 231 ◽  
Author(s):  
C.J. Chien ◽  
B.M. Clemens ◽  
S.B. Hagstrom ◽  
R.F.C. Farrow ◽  
C.H. Lee ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Easy Axis ◽  
Magnetocrystalline Anisotropy ◽  
Structural Data ◽  
Magnetic Surface ◽  
Surface Anisotropy ◽  
Cross Sectional ◽  
Planar Defects ◽  
Gaas Substrates ◽  
Transmission Electron

AbstractSelected orientations of epitaxial Co/Pt superlattices were grown on GaAs substrates in [001], [110], and [111] orientations using seeded epitaxy techniques. The microstructural and magnetic properties of Co/Pt superlattices are presented. The magnetic anisotropies of Co/Pt superlattices are found strongly dependent on the crystallographic orientation of the growth axis. High-resolution cross-sectional transmission electron microscopy (HRXTEM) investigation of the Co/Pt interfaces has revealed the presence of a large number of planar defects in the [111] Co/Pt superlattice. HRXTEM shows that the interface of Co/Pt is wavy and is not atomically abrupt. These findings suggest that models for the magnetic anisotropy should not be based on idealized, chemically abrupt interfaces but should incorporate magnetocrystalline anisotropy in the alloy region. We propose a model for the magnetic anisotropy based on the N6el magnetic surface anisotropy and the existence of defects in the alloy region. The easy axis of the magnetic anisotropy predicted by the model agrees with the magnetic and structural data for the superlattices.

Sign in / Sign up

Export Citation Format

Share Document