Magnetic coupling in La-Ca-Mn-O/La-Sr-Co-O/La-Ca-Mn-O sandwiches
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AbstractLa0.67Ca0.33MnO3/La0.67Sr0.33CoO3/La0.67Ca0.33MnO3 (LCMO/LSCO/LCMO) trilayers are fabricated on single-crystal substrates NdGaO3 (110) and the interlayer coupling are investigated. The magnetoresistance (MR) is dependent on spacer thickness and the peak value of MR dramatically decreases when the LSCO layer is thick enough because of shorting by the LSCO layer. Compared with the LCMO single layer, trilayer films showed the enhanced metal-semiconductor transition temperature of LCMO layers. The magnetic coercivity H-C shows a nonmonotonic behavior with changing the spacer layer thickness and the waist-like hysteresis indicates that there is an indirect exchange coupling between the top and bottom LCMO layers across the spacer layer. (C) 2004 American Institute of Physics.
All Author(s) ListZhao K, Zhang L, Li H, Wong HK
Name of Conference9th Joint Magnetism and Magnetic Materials Conference/ International Magnetics Conference
Start Date of Conference05/01/2004
End Date of Conference09/01/2004
Place of ConferenceAnaheim
Journal nameJournal of Applied Physics
Year2004
Month6
Day1
Volume Number95
Issue Number11
PublisherAMER INST PHYSICS
Pages7363 - 7365
ISSN0021-8979
eISSN1089-7550
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesPhysics; Physics, Applied; PHYSICS, APPLIED

Last updated on 2020-07-04 at 00:56