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Spin-Polarized Transport Phenomena in Double Magnetic Tunnel Junctions Caused by Ferromagnetic CoFe Nanoparticles
- Authors
- Yoon, Kapsoo; Kim, Kiwoong; Koo, Jahyun; Yang, Jungyup; Do, YoungHo; Kwak, Junesik; Hong, Jinpyo
- Issue Date
- Jan-2010
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Double magnetic tunnel junctions; magnetic devices
- Citation
- IEEE TRANSACTIONS ON MAGNETICS, v.46, no.1, pp.7 - 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON MAGNETICS
- Volume
- 46
- Number
- 1
- Start Page
- 7
- End Page
- 9
- ISSN
- 0018-9464
- Abstract
- We present some unusual spin-polarized transport phenomena in asymmetric double barrier magnetic tunneling junctions (ADBMTJs) with CoFe/AlOx/ferromagnetic nanoparticle (FM-NPs)/AlOx/Ta structures. The conductance curves and the magnetoresistance ratio clearly oscillate with applied bias voltage, indicating the presence of Coulomb blockade effects due to isolated ferromagnetic nanoparticles in the parallel configuration in the ADBMTJ. The oscillation period is about 1.5 mV at 2 K.
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Related Researcher
- Hong, Jin Pyo
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)