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Electrically Programmable Magnetoresistance in Multifunctional Organic‐Based Spin Valve Devices
Author(s) -
Prezioso Mirko,
Riminucci Alberto,
Bergenti Ilaria,
Graziosi Patrizio,
Brunel David,
Dediu Valentin A.
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201003974
Subject(s) - spintronics , materials science , magnetoresistance , spin valve , manganite , organic semiconductor , electrode , spin diffusion , spin (aerodynamics) , aluminium , optoelectronics , electrical contacts , nanotechnology , condensed matter physics , composite material , ferromagnetism , magnetic field , mechanical engineering , chemistry , physics , quantum mechanics , engineering
A multifunctional organic spintronic device is demonstrated using tris(8‐hydroxyquinolinato)aluminium (Alq 3 )‐based vertical spin valves with manganite and cobalt electrodes. The device shows a non‐volatile electrical switching with dramatic effects on the spin transport behavior. The interplay of electrical and magnetic bistabilities enables the electrical control of the spin valve magnetoresistance. This multifunctionality is illustrated together with a phenomenological model that establishes a connection between the electrical and magnetic bistabilities.