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This content will become publicly available on January 12, 2019

Title: Large resistance change on magnetic tunnel junction based molecular spintronics devices

Here, molecular bridges covalently bonded to two ferromagnetic electrodes can transform ferromagnetic materials and produce intriguing spin transport characteristics. This paper discusses the impact of molecule induced strong coupling on the spin transport. To study molecular coupling effect the octametallic molecular cluster (OMC) was bridged between two ferromagnetic electrodes of a magnetic tunnel junction (Ta/Co/NiFe/AlOx/NiFe/Ta) along the exposed side edges. OMCs induced strong inter-ferromagnetic electrode coupling to yield drastic changes in transport properties of the magnetic tunnel junction testbed at the room temperature. These OMCs also transformed the magnetic properties of magnetic tunnel junctions. SQUID and ferromagnetic resonance studies provided insightful data to explain transport studies on the magnetic tunnel junction based molecular spintronics devices.
Authors:
ORCiD logo [1] ;  [2]
  1. Univ. of the District of Columbia, Washington, D.C. (United States); Univ. of Kentucky, Lexington, KY (United States)
  2. Univ. of the District of Columbia, Washington, D.C. (United States)
Publication Date:
Grant/Contract Number:
NA0002687
Type:
Accepted Manuscript
Journal Name:
Journal of Magnetism and Magnetic Materials
Additional Journal Information:
Journal Volume: 453; Journal Issue: C; Journal ID: ISSN 0304-8853
Publisher:
Elsevier
Research Org:
Univ. of the District of Columbia, Washington, D.C. (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation (NA-20)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Molecular spintronics; Magnetic tunnel junctions; Magnetic molecules
OSTI Identifier:
1439170