Magnetic properties of lithographically defined lateral Co/Ni80Fe20 wires |
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| Institution: | 1. College of Physics, Qingdao University, Qingdao 266071, PR China;2. Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, PR China;1. MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Northwestern Polytechnical University, Xi’an 710072, China;2. Beijing National Laboratory for Condensed Matter and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;3. School of Material and Chemical Engineering, Chuzhou University, Chuzhou 239000, China;1. Department of Psychiatry, Weill Cornell Medical College, 21 Bloomingdale Road, White Plains, NY 10605, USA;2. Clinical Research Division, Nathan S. Kline Institute for Psychiatric Research,140 Old Orangeburg Road, Orangeburg, NY 10962, USA;3. Department of Psychiatry, New York University Grossman School of Medicine, 550 First Avenue, New York, NY 10016, USA;4. Wellcome Centre for Integrative Neuroimaging, FMRIB, Nuffield Department of Clinical Neurosciences, University of Oxford, UK;5. Neurology, Pacific Parkinson''s Research Center, University of British Columbia, 2221 Wesbrook Mall, Vancouver, British Columbia V6T 2B5 Canada |
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| Abstract: | A novel micro-fabrication technique has been used to create an array of lateral magnetic multilayers consisting of micron-sized sputtered Co and Ni80Fe20 wires. The structures were fabricated using conventional optical lithography and a combination of hard and soft lift-off methods. For the field applied parallel to the wires intrinsic easy axis, we observed two switching fields corresponding to the distinct coercive field of the Ni80Fe20 wires (Hc1) and Co wires (Hc2) constituting the lateral multilayer wire array. A state of anti-parallel relative alignment of magnetization was observed when the applied field is greater than the switching field of Ni80Fe20 wires but less than the switching field of Co wires. We found the region of anti-parallel alignment of magnetization between the Co and Ni80Fe20 wires to be very sensitive to the relative orientation of the applied magnetic field. |
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