Nonlinear three-magnon scattering in low-damping La_0.67Sr_0.33MnO₃ thin films

Zhang, Yuelin1,2; Sheng, Lutong1; Chen, Jilei2,3; Wang, Jie4; Zhu, Zengtai5; Yuan, Rundong1; Lu, Jingdi4,6; Wang, Hanchen1; Hao, Sijie4; Chen, Peng7; Yu, Guoqiang5,7; Han, Xiufeng7; Yu, Haiming1,2

2023-09-01

10.1088/1674-1056/acedf8

CHINESE PHYSICS B   Impact Factor & Quartile

1674-1056

2058-3834

Three-magnon scattering, a nonlinear process in which a high-energy magnon splits into two low-energy magnons with energy and momentum conservation, has been widely studied in the magnonics community. Here, we report experimental observation of nonlinear three-magnon scattering in La(0.67)Sr(0.33)MnO(3 )thin films with low magnetic damping (similar to 10(-4)) by all-electric and angle-resolved spin wave spectroscopy. The reflection spectra of the spin wave resonance with high-power excitation at Damon-Eshbach configuration demonstrate a scattering regime with gradual signal disappearance, where a magnon of Damon-Eshbach mode decays into two magnons of volume mode above the threshold power (-10 dBm) of the injected microwave. The nonlinear scattering is only allowed at low-field regime and the calculated dispersions of dipole-exchange spin wave claim the mechanism of allowed and forbidden three-magnon scattering. The films and heterostructures of La0.67Sr0.33MnO3 have been already demonstrated with rich physical phenomena and great versatility, in this work the nonlinear magnetic dynamics of La0.67Sr0.33MnO3 thin films is revealed, which offer more possibility for applications to oxide magnonics and nonlinear magnonic devices.

spin wave resonance nonlinear scattering LSMO films microwave antenna

SCI

English

Others

Project supported by the National Key Research and Development Program of China (Grant No. 2022YFA1402801). Yuelin Zhang thanks the support from the China Postdoctoral Science Foundation Funded Project (Grant No. 2021M700344). Project supported also by the[2022YFA1402801] ; National Key Research and Development Program of China[2021M700344] ; China Postdoctoral Science Foundation Funded Project["12074026","12104208","U1801661"]

Physics

Physics, Multidisciplinary

WOS:001076837900001

IOP Publishing Ltd

Web of Science

1.Beihang Univ, Fert Beijing Inst, Sch Integrated Circuit Sci & Engn, MIIT Key Lab Spintron, Beijing 100191, Peoples R China
2.Int Quantum Acad, Shenzhen 518048, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518048, Peoples R China
4.Beijing Normal Univ, Dept Phys, Beijing 100191, Peoples R China
5.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China
6.Univ Sci & Technol China, Hefei Natl Res Ctr Phys Sci Microscale, Hefei 230026, Peoples R China
7.Univ Chinese Acad Sci, Inst Phys, Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

Zhang, Yuelin,Sheng, Lutong,Chen, Jilei,et al. Nonlinear three-magnon scattering in low-damping La_0.67Sr_0.33MnO₃ thin films[J]. CHINESE PHYSICS B,2023,32(10).

Zhang, Yuelin.,Sheng, Lutong.,Chen, Jilei.,Wang, Jie.,Zhu, Zengtai.,...&Yu, Haiming.(2023).Nonlinear three-magnon scattering in low-damping La_0.67Sr_0.33MnO₃ thin films.CHINESE PHYSICS B,32(10).

Zhang, Yuelin,et al."Nonlinear three-magnon scattering in low-damping La_0.67Sr_0.33MnO₃ thin films".CHINESE PHYSICS B 32.10(2023).