Direct Observation of Domain Structure and Magnetization Reversal of Magnetic Thin Films Using Lorentz Transmission Electron Microscopy : Magnetism
スポンサーリンク
概要
- 論文の詳細を見る
Lorentz transmission electron microscopy (LTEM) was used to characterize the domain structure and the magnetization reversal process of Ni_80Fe_20 and Co films fabricated using magnetron sputtering. In-situ magnetizing experiments were performed in Fresnel imaging mode, while a long camera length mode ("reverse mode") was employed for Foucault imaging. At low fields, magnetization ripple in the Co films showed higher magnetic contrast and angular distribution than in the NiFe films, which was due to the high anisotropy of Co. The NiFe films reversed via rapid wall motion while the Co films reversed mainly via slow moment rotation followed by wall motion. It is confirmed that domain wall mobility in the NiFe films is higher than that in the Co films. Profound columnar texture of the Co films observed in conventional transmission electron microscopy may enhance wall pinning and thus hinder wall mobility.
- 社団法人応用物理学会の論文
- 2001-08-15
著者
-
MIYAZAKI Terunobu
Department of Applied Physics, Graduate School of Engineering, Tohoku University
-
Miyazaki Terunobu
Department Of Applied Physics Faculty Of Engineering Tohoku University
-
Yu Andrew
Department Of Applied Physics Graduate School Of Engineering Tohoku University:department Of Materia
-
Yu Andrew
Department Of Applied Physics Graduate School Of Engineering Tohoku University
-
Miyazaki T
Department Of Applied Physics Graduate School Of Engineering Tohoku University
-
PETFORD-LONG Amanda
Department of Materials, University of Oxford
-
Petford-long Amanda
Department Of Materials University Of Oxford
関連論文
- Tunnel Magnetoresistance Effect in Magnetic Tunnel Junctions Using a Co_2MnSi(110) Electrode
- Tunneling Spin Polarization and Magnetic Properties of Co-Fe-B Alloys and Their Dependence on Boron Content
- Anisotropic Intrinsic Damping Constant of Epitaxial Co_2MnSi Heusler Alloy Films
- Temperature Dependence of Tunnel Magnetoresistance in Co-Mn-Al/Al-Oxide/Co-Fe Junctions
- A Simple Fabrication Process using Focused Ion Beam for Deep Submicron Magnetic Tunnel Junctions
- Spin-Dependent Inelastic Electron Tunneling Spectroscopy of Magnetic Tunnel Junctions
- Large Magnetoresistance in Magnetic Tunnel Junctions Using Co-Mn-Al Full Heusler Alloy
- Fabrication and Evaluation of Magnetic Tunnel Junction with MgO Tunneling Barrier
- Temperature Dependence of the Spin Tunneling Magnetoresistive Effect on NiFe/Co/Al_2O_3/Co/NiFe/FeMn Junctions
- Spin Injection into Organic Light-Emitting Devices with Ferromagnetic Cathode and Effects on Their Luminescence Properties
- Scanning Tunneling Microscopy Observation of the Initial State of Oxidation in Ferromagnetic Tunnel Junctions : Magnetism
- Magnetic Relaxation in Amorphous (Fe_Ni_x)_Si_B_ Alloys
- The Study on Ferromagnetic Resonance Linewidth for NM/80NiFe/NM (NM = Cu, Ta, Pd and Pt) Films
- Annealing Effect on Low-Resistance Ferromagnetic Tunnel Junctions
- 26pPSA-69 Spin reorientation and first order magnetization process in Ho_3Fe_T_x(T=V and Cr)
- Structure and magnetoresistance of IrMn exchange-biased junctions
- Transport properties in ferromagnetic double barrier junctions
- Magnetic Domains of an Amorphous Fe_P_C_7 Alloy
- Magnetic Properties of Rapidly Quenched Fe-Al Alloys
- INSTABILITY OF PERMEABILITY OF AN AMORPHOUS Fe_5Co_Si_B_ ALLOY
- Magneto-Optical Spectra in Co/MgO, Ni/MgO, Co/Ag and Ni/Ag Multilayers
- Magnetic Anisotropy in an Amorphous Fe_P_C_7 Alloy
- Temperature and Applied Voltage Dependence of Magnetoresistance Ratio in Fe/Al oxide/Fe Junctions
- The Variation of the Uniaxial Magnetic Anisotropy along the Thickness in an Amorphous Fe_P_C_7 Alloy
- Lorentz Microscopy Observation of Magnetic Domain Structure Variation in NiFe/Au Multilayer Films Caused by Au Layer Thickness
- High Resolution Electron Microscopy Observation of Different Al-Oxide Layers in Magnetic Tunnel Junctions : Surfaces, Interfaces, and Films
- Direct Observation of Domain Structure and Magnetization Reversal of Magnetic Thin Films Using Lorentz Transmission Electron Microscopy : Magnetism
- Enhancement of Tunnel Magnetoresistance Effect on Junction with Co Cluster Layers in Coulomb Blockade Regime
- Direct Observation of Magnon Excitation in a Ferromagnetic Tunnel Junction Using Inelastic-Electron-Tunneling Spectroscopy
- TEM observation of the microstructure in sputtered NiFe/Au multilayer films
- Magnetic Damping in Ferromagnetic Thin Films
- Local Transport Property on Ferromagnetic Tunnel Junction Measured Using Conducting Atomic Force Microscope
- Fabrication of Co2MnAl Heusler Alloy Epitaxial Film Using Cr Buffer Layer
- Fabrication and Evaluation of Magnetic Tunnel Junction with MgO Tunneling Barrier
- Large Magnetoresistance in Magnetic Tunnel Junctions Using Co-Mn-Al Full Heusler Alloy
- Spin-Dependent Inelastic Electron Tunneling Spectroscopy of Magnetic Tunnel Junctions
- Huge Spin-Polarization of L21-Ordered Co2MnSi Epitaxial Heusler Alloy Film
- A Simple Fabrication Process using Focused Ion Beam for Deep Submicron Magnetic Tunnel Junctions
- Temperature Dependences of Spin-Diffusion Lengths of Cu and Ru layers
- Spin Injection into Organic Light-Emitting Devices with Ferromagnetic Cathode and Effects on Their Luminescence Properties
- High-Magnetoresistance Tunnel Junctions Using Co_Fe_ Ferromagnetic Electrodes