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Title: Multi-state magnetoresistance in ferromagnet/organic-ferromagnet/ferromagnet junctions

Spin-dependent transport through a ferromagnetic metal/organic-ferromagnet/ferromagnet metal junction is investigated theoretically. It is demonstrated that the current through the device strongly depends on the alignment of the magnetization orientations of the electrodes and interlayer. The spin-related electron tunnelling between the ferromagnetic electrodes suffers a further spin selection induced by the spin-polarized states of the central organic ferromagnet. This work indicates an intriguing prospect of organic ferromagnets in spintronic devices, such as four-state magnetoresistance manipulated by a magnetic field.
Authors:
; ; ;  [1] ;  [2]
  1. College of Physics and Electronics, Shandong Normal University, Jinan 250014 (China)
  2. School of Physics, Shandong University, Jinan 250100 (China)
Publication Date:
OSTI Identifier:
22280593
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRONS; FERROMAGNETIC MATERIALS; FERROMAGNETISM; HETEROJUNCTIONS; INTERFACES; MAGNETIC FIELDS; MAGNETIZATION; MAGNETORESISTANCE; ORGANOMETALLIC COMPOUNDS; SPIN; SPIN ORIENTATION; TUNNEL EFFECT