期刊
ACS NANO
卷 11, 期 9, 页码 9286-9293出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b04653
关键词
magnetoelectric coupling; two-magnon scattering spin waves; spin lattice coupling ferromagnetic resonance
类别
资金
- Natural Science Foundation of China [51472199, 11534015, 51602244]
- National 111 Project of China [B14040]
- 973 Program [2015CB057402]
- Fundamental Research Funds for the Central Universities
- International Joint Laboratory for Micro/Nano Manufacturing and Measurement Technologies
- China Recruitment Program of Global Youth Experts
- Natural Sciences and Engineering Research Council of Canada
- Division of Scientific User Facilities of the Office of Basic Energy Sciences, U.S. Department of Energy
Electric field control of dynamic spin interactions is promising to break through the limitation of the magnetostatic interaction based magnetoelectric (ME) effect. In this work, electric field control of the two-magnon scattering (TMS) effect excited by in-plane lattice rotation has been demonstrated in a La(0.7)SruMnO(3) (LSMO)/Pb(Mn2/3Nb1/3)-PbTiO3 (PMN-PT) (011) multiferroic heterostructure. Compared with the conventional strain -mediated ME effect, a giant enhancement of ME effect up to 950% at the TMS critical angle is precisely determined by angular resolution of the ferromagnetic resonance (FMR) measurement. Particularly, a large electric field modulation of magnetic anisotropy (464 Oe) and FMR line width (401 Oe) is achieved at 173 K. The electric-field-controllable TMS effect and its correlated ME effect have been explained by electric field modulation of the planar spin interactions triggered by spin lattice coupling. The enhancement of the ME effect at various temperatures and spin dynamics control are promising paradigms for next-generation voltage-tunable spintronic devices.
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