Probing Exchange Bias Effects in CoO/Co Bilayers with Pillar-Like CoO Structures

スポンサーリンク

概要

• 論文の詳細を見る

• Exchange bias effects in CoO/Co bilayers fabricated by ion-assisted deposition were studied as a function of CoO thickness. During the deposition of the top CoO layer, pillar-like CoO structures were embedded in the underlying Co layer due to implantation of oxygen ions. The enhanced coercivity was attributed to the changes in the magnetic reversal mechanism in the ferromagnetic Co layer due to the penetration of pillar-like structures of antiferromagnetic CoO. At low temperature, we found a strong exchange bias field. Our measurements indicate that the exchange bias effect can exist in a nanocomposite system that has a disordered mixture of columnar and planar Co/CoO interfaces.

• 2012-11-25

著者

• Lin Ko-wei

  Department Of Materials Engineering National Chung Hsing University

• Lin Ko-Wei

  Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan

• Shueh Chin

  Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan

• Cortie David

  The Institute for Superconducting and Electronic Materials, The University of Wollongong, Wollongong, NSW 2522, Australia

• Chen Pei-shi

  Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan

• Gao Jian-Fa

  Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan

• Klose Frank

  The Australian Nuclear Science and Technology Organization, Kirrawee, NSW 2232, Australia

• Lierop Jan

  Department of Physics and Astronomy, University of Manitoba, Winnipeg, R3T 2N2, Canada

関連論文

• Microstructures and Magnetism of Different Oxides Separating FePt Grains via Ion-Beam Bombardment and Annealing
• Magnetic and Magnetotransport Properties of Exchange-Biased NiFe/NiO Bilayers
• Thermal Annealing Effects on the Structural, Magnetic, and Magnetotransport Properties of NiFe/(Ni,Fe)O Bilayers
• Tuning Microstructural and Magnetic Properties of Ion-Beam-Deposited Ni80Fe20/NixFe1-xO Composite Films
• Ion-Beam Bombarded SiO2 Layer Effects on the Microstructure and Magnetism in FePt/SiO2 Bilayers
• Correlating Uncompensated Antiferromagnetic Moments and Exchange Coupling Interactions in Interface Ion-Beam Bombarded Co90Fe10/CoFe-Oxide Bilayers
• Probing Exchange Bias Effects in CoO/Co Bilayers with Pillar-Like CoO Structures
• Antiferromagnetic Layer Structure Effects on Exchange Coupling Strength in Ion-Beam Deposited Ni80Fe20/Cobalt Oxide Bilayers
• Enhanced Anisotropic Magnetoresistance of Ion-Beam-Deposited Ni80Fe20–NixFe1-xO Composite Films

スポンサーリンク