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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.117  No.1365 (May) (2009)  >  pp.639-642

Journal of the Ceramic Society of Japan
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Electric field-induced resistance changes at low temperature on a Cr2O3/ultra-thin (La,Sr)MnO3 magnetic hetero structure

Takeshi YOKOTA1), Shotaro MURATA1), Shinya KITO1) and Manabu GOMI1)
1) Materials Science and Engineering, Nagoya Institute of Technology

  We have investigated the relationships between electric field-induced resistance change and the magnetic properties of the Cr2O3/ultra-thin La0.7Sr0.3MnO3 (LSMO) magnetic hetero structure. The LSMO with a thickness of 40 nm has two transition temperatures, the ferromagnetic Curie temperature of 312 K and the spin-glass temperature of 180 K. Resulting from the magnetic properties, the exchange interaction in the Cr2O3/LSMO behavior below 180 K differed from that below 312 K. With the application an electric field on the Cr2O3 gate, the resistance of LSMO film was changed. This resistance change is most likely due to the magnetic state of LSMO and the interface interaction between the Cr2O3 and LSMO film

Magneto-electric effect, Exchange bias, Magnetic properties, Electric properties, Spin glass

Received: November 06, 2008
Accepted: April 16, 2009 , Published online: May 01, 2009
Copyright (c) 2009 The Ceramic Society of Japan



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