Abstract
In the present study, structural properties and microwave permeability of (Co[sub 88] Fe[sub 9] Si[sub 3])[sub 100-x]B[sub x] (5[<=]x[<=]15 at.%) films prepared by ion beam sputtering (IBS) were investigated as a function of film composition and deposition parameters. A microcrystalline phase with left angle 111 right angle orientation normal to the film plane is obtained for low boron content (x<6at.%) and deposition rate above 2 nm/min, whereas the material is amorphous or partially crystallized at 1,5 nm/min or for a boron content of 12 at.%. In-plane uniaxial anisotropy field H[sub k] and coercive force H[sub c] have also been found to be strongly dependent on deposition rate. For microcrystalline films prepared at high growth rate, permeability measurements in the gigahertz range show that gyromagnetic resonance frequency is 1.5 GHz whereas the real part of relative permeability [nu]' is 1100 along the hard axis and 1 along the easy axis. In contrast amorphous films deposited at low deposition rate exhibit semihard properties. The complex permeability spectra shows a low rotational permeability [mu]' (<200) conbined with a high resonance frequency more than 3 Ghz. This behavior might be attributed to the structural inhomogeneities in alloy. (orig.).
Vermeulen, J L;
[1]
Acher, O;
[2]
Ravel, F
[1]
- Commissariat a l'Energie Atomique, 91 - Bruyeres-le-Chatel (France). Centre d'Etudes
- Commissariat a l'Energie Atomique, 91 -Bruyeres-le-Chatel (France). Centre d'Etudes
Citation Formats
Vermeulen, J L, Acher, O, and Ravel, F.
Relations between frequency dependent permeability and structural properties of Co-Fe-Si-B alloys prepared by ion beam sputtering. Relations entre la permeabilite en frequence et les proprietes structurales des alliages Co-Fe-Si-B deposes par pulverisation ionique.
France: N. p.,
1992.
Web.
Vermeulen, J L, Acher, O, & Ravel, F.
Relations between frequency dependent permeability and structural properties of Co-Fe-Si-B alloys prepared by ion beam sputtering. Relations entre la permeabilite en frequence et les proprietes structurales des alliages Co-Fe-Si-B deposes par pulverisation ionique.
France.
Vermeulen, J L, Acher, O, and Ravel, F.
1992.
"Relations between frequency dependent permeability and structural properties of Co-Fe-Si-B alloys prepared by ion beam sputtering. Relations entre la permeabilite en frequence et les proprietes structurales des alliages Co-Fe-Si-B deposes par pulverisation ionique."
France.
@misc{etde_5775276,
title = {Relations between frequency dependent permeability and structural properties of Co-Fe-Si-B alloys prepared by ion beam sputtering. Relations entre la permeabilite en frequence et les proprietes structurales des alliages Co-Fe-Si-B deposes par pulverisation ionique}
author = {Vermeulen, J L, Acher, O, and Ravel, F}
abstractNote = {In the present study, structural properties and microwave permeability of (Co[sub 88] Fe[sub 9] Si[sub 3])[sub 100-x]B[sub x] (5[<=]x[<=]15 at.%) films prepared by ion beam sputtering (IBS) were investigated as a function of film composition and deposition parameters. A microcrystalline phase with left angle 111 right angle orientation normal to the film plane is obtained for low boron content (x<6at.%) and deposition rate above 2 nm/min, whereas the material is amorphous or partially crystallized at 1,5 nm/min or for a boron content of 12 at.%. In-plane uniaxial anisotropy field H[sub k] and coercive force H[sub c] have also been found to be strongly dependent on deposition rate. For microcrystalline films prepared at high growth rate, permeability measurements in the gigahertz range show that gyromagnetic resonance frequency is 1.5 GHz whereas the real part of relative permeability [nu]' is 1100 along the hard axis and 1 along the easy axis. In contrast amorphous films deposited at low deposition rate exhibit semihard properties. The complex permeability spectra shows a low rotational permeability [mu]' (<200) conbined with a high resonance frequency more than 3 Ghz. This behavior might be attributed to the structural inhomogeneities in alloy. (orig.).}
journal = []
volume = {2:3}
place = {France}
year = {1992}
month = {Dec}
}
title = {Relations between frequency dependent permeability and structural properties of Co-Fe-Si-B alloys prepared by ion beam sputtering. Relations entre la permeabilite en frequence et les proprietes structurales des alliages Co-Fe-Si-B deposes par pulverisation ionique}
author = {Vermeulen, J L, Acher, O, and Ravel, F}
abstractNote = {In the present study, structural properties and microwave permeability of (Co[sub 88] Fe[sub 9] Si[sub 3])[sub 100-x]B[sub x] (5[<=]x[<=]15 at.%) films prepared by ion beam sputtering (IBS) were investigated as a function of film composition and deposition parameters. A microcrystalline phase with left angle 111 right angle orientation normal to the film plane is obtained for low boron content (x<6at.%) and deposition rate above 2 nm/min, whereas the material is amorphous or partially crystallized at 1,5 nm/min or for a boron content of 12 at.%. In-plane uniaxial anisotropy field H[sub k] and coercive force H[sub c] have also been found to be strongly dependent on deposition rate. For microcrystalline films prepared at high growth rate, permeability measurements in the gigahertz range show that gyromagnetic resonance frequency is 1.5 GHz whereas the real part of relative permeability [nu]' is 1100 along the hard axis and 1 along the easy axis. In contrast amorphous films deposited at low deposition rate exhibit semihard properties. The complex permeability spectra shows a low rotational permeability [mu]' (<200) conbined with a high resonance frequency more than 3 Ghz. This behavior might be attributed to the structural inhomogeneities in alloy. (orig.).}
journal = []
volume = {2:3}
place = {France}
year = {1992}
month = {Dec}
}