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Flexible spintronic devices on Kapton

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Authors:
  • Bedoya-Pinto, Amilcar ;
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    CIC nanoGUNE Consolider
  • Donolato, Marco ;
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    Department of Micro- and Nanotechnology, Technical University of Denmark
  • Gobbi, Marco ;
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    CIC nanoGUNE Consolider
  • Hueso, Luis E. ;
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    CIC nanoGUNE Consolider
  • Vavassori, Paolo
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    CIC nanoGUNE Consolider
DOI:
10.1063/1.4865201
Abstract:
Magnetic tunnel junctions and nano-sized domain-wall conduits have been fabricated on the flexible substrate Kapton. Despite the delicate nature of tunneling barriers and zig-zag shaped nanowires, the devices show an outstanding integrity and robustness upon mechanical bending. High values of bending angle (r = 5 mm) have been achieved without degradation of the device performance, reaching room-temperature tunneling magnetoresistance ratios of 12% in bended Co/Al2O3/NiFe junctions. In addition, a suitable route to pattern high-quality nanostructures directly on the polyimide surface is established. These results demonstrate that Kapton is a promising platform for low-cost, flexible spintronic applications involving tunnel junction elements and nanostructurization. 
Type:
Journal article
Language:
English
Published in:
Applied Physics Letters, 2014, Vol 104, Issue 6
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2014
Scientific Level:
Scientific
ID:
260245309

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