Browsing by Author "Yang, Jan Chi"

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Dynamic magnetic interaction in La2/3Sr1/3MnO3/BiFeO3 heterostructure
(2014-09-15)
Guo, H. Y.
;
Lin, J. G.
;
Yang, Jan Chi
;
Chu, Y. H.
;
材料科學與工程學系
The La2/3Sr1/3MnO3/BiFeO3 (LSMO/BFO) heterostructure is studied as probed by temperature-dependent ferromagnetic resonance (FMR). Consistent with the structure analysis, two FMR modes are found for both a single LSMO layer and a LSMO/BFO bilayer grown on DyScO3, corresponding to the strained and relaxed phases of LSMO. The FMR linewidth intensity vs temperature curve shows two maxima at 200 K and 140 K in the strained phase of LSMO/BFO bilayer, which is related to the magnetic excitations in BFO. Our results demonstrate a dynamic spin interaction between LSMO and BFO, suggesting an effective route to manipulate the magnetic properties of oxide heterostructures. (C) 2014 AIP Publishing LLC.