Paper Abstract and Keywords |
Presentation |
2010-03-12 16:20
Spin filtering through a ferromagnetic La2NiMnO6 tunnel barrier Toshifumi Katsuragi, Yuya Miyazaki, Yuichi Shiji, Masaaki Tanaka, Ko Mibu (Nagoya Inst. of Tech.), Kouta Kondou (Kyoto Univ.), Shinya Kasai (NIMS), Teruo Ono (Kyoto Univ.) MR2009-65 Link to ES Tech. Rep. Archives: MR2009-65 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We investigated magnetic tunnel junctions (MTJs) La0.7Sr0.3MnO3(LSMO)/LaTiO3/La2NiMnO6(LNMO)/Cr/Au which were fabricated on SrTiO3 substrates to examine spin-filtering effect through the ferromagnetic insulator LNMO by the measurement of tunnel magnetoresistance (TMR). The MTJ showed TMR ratio of about 19 % at 50 K and about 10 % at 110 K accompanied by the change of magnetization configuration of LSMO and LNMO from parallel to antiparallel. The spin polarization of the tunnel current through the LNMO barrier was estimated to be about 9 % at 50 K and about 4 % at 110 K. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Spintronics / Spin-filtering effect / Tunnel magnetoresistance / Ferromagnetic insulator / Double perovskite / Pulsed laser deposition / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, March 2010. |
Paper # |
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Date of Issue |
2010-03-05 (MR) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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MR2009-65 Link to ES Tech. Rep. Archives: MR2009-65 |