首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Electronic and magneto-transport study across swift heavy ion irradiated exchange coupled Fe/NiO bilayer on Si substrate
Institution:1. Department of Physics, Banaras Hindu University, Varanasi 221005, U.P., India;1. Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China;2. Hubei Key Laboratory for Engineering Structural Analysis and Safety Assessment, Wuhan 430074, China;1. Department of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran;2. Department of Physics, Faculty of Science, Bilkent University, Ankara, Turkey;1. Key Laboratory of Photonic and Electronic Bandgap Materials, Ministry of Education, Harbin Normal University, Harbin 150025, China;2. College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China;3. College of Education of Heilongjiang, Harbin 150080, China;1. Alexandria University, New Advanced Materials & Nanotechnology Centre, Faculty of Engineering, Textile & Material Department, 21544 Alexandria, Egypt;2. Laboratory of Nanosciences Research (LNR), E.A. no.4682, UFR Sciences, Department of Physics, University of Reims Champagne Ardenne, 21 rue Clément Ader, 51685 cedex 02, France;3. University of Mohammed V- Agdal, Materials Physics Laboratory, P.B. 1014, Rabat, Morocco;4. Physics and Astronomy Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;5. Research chair of Exploitation of Renewable Energy Applications in Saudi Arabia, Physics & Astronomy Dept., College of Science, King Saud University, P.0.Box 2455, Riyadh 11451, Saudi Arabi;6. Physics Department, Faculty of Science, Ain Shams University, Abassia, Cairo 11566, Egypt;7. Faculty of Electrical Engineering, Czestochowa University of Technology, Armii Krajowej 17, Czestochowa, Poland;1. School of Physics, University of Hyderabad, Hyderabad 500046, India;2. Department of Physics, Visvabharathi University, Shantinekatan, Birbhum, India
Abstract:Low temperature electronic and magneto-transport study across Fe/NiO bilayer on Si substrate has been reported. These bilayer structures have been irradiated by swift heavy ions (~100 MeV Fe7+ ions with a fluence of 5×1012 ions/cm2). The electronic transport study across such bilayer (both unirradiated and irradiated) structures has shown the semiconducting nature of the interface. A significant decrease in current has been observed for the irradiated structure (as compared to unirradiated ones on the irradiation) which could be due to the irradiation induced introduction of defects/disorders in the structure. The magneto-transport study across unirradiated structure has shown the magnetic field sensitivity at low temperatures only whereas the irradiated structure has not shown any perceptible magnetic field sensitivity at low temperatures. Such observed intriguing feature of magnetic field sensitivity across the bilayer structures could be understood due to the motion of thermally assisted magnetic domain walls in the presence of external applied magnetic field. The observed high % MR could be related to spin-dependent electron scattering at the interfaces.
Keywords:Low temperature magneto-transport  Ion irradiation  Magnetoresistance  Domain wall  Spin-dependent scattering
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号