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

Journal Article · Mon Jan 20 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4862970· OSTI ID:22280593

Zuo, M. Y.; Li, Y.; Ren, J. F. ^[1]; Xie, S. J. ^[2]

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1. College of Physics and Electronics, Shandong Normal University, Jinan 250014 (China)
2. School of Physics, Shandong University, Jinan 250100 (China)

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.

• OSTI ID: 22280593
• Journal Information: Applied Physics Letters, Vol. 104, Issue 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRONS
FERROMAGNETIC MATERIALS
FERROMAGNETISM
HETEROJUNCTIONS
INTERFACES
MAGNETIC FIELDS
MAGNETIZATION
MAGNETORESISTANCE
ORGANOMETALLIC COMPOUNDS
SPIN
SPIN ORIENTATION
TUNNEL EFFECT