Anomalous anisotropic spin-wave propagation in thin manganite films with uniaxial magnetic anisotropy

Wang，Hanchen1; Yang，Yuben2; Madami，Marco3; Wang，Yizhan4; Du，Mian1; Chen，Jilei1,5,6; Zhang，Yu4; Sheng，Lutong1; Zhang，Jianyu1; Wen，Chen1; Zhang，Yuelin1,2; Hao，Sijie2; Yu，Guoqiang4; Han，Xiufeng4; Gubbiotti，Gianluca7; Shen，Ka2; Zhang，Jinxing2; Yu，Haiming1

2022-05-09

10.1063/5.0088546

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

Manipulation of the spin-wave coherent length is highly desirable to overcome intrinsic damping and to improve functionalities of magnonics materials and devices. In this work, based on angle-resolved propagating spin-wave spectroscopy and micro-focused Brillouin light scattering, we report a giant anisotropy of spin wave propagation in a 20 nm-thick La0.67Sr0.33MnO3 film grown on a NdGaO3 substrate. Vanishing of such anisotropic features in reference experiments where the La0.67Sr0.33MnO3 film is grown on SrTiO3 suggests that the anisotropic spin-wave propagation might be originated from different lattice mismatches of the LSMO film with these two substrates. Interestingly, the decay length and the relaxation time of spin waves are found to be largest when the wavevector is along the [110] crystalline orientation, which is neither at easy nor hard axis related to the in-plane uniaxial magnetic anisotropy. This suggests the possibility of individual control of the magnetic anisotropy and spin-wave anisotropy via strain engineering. Our discovery may enrich the material systems for anisotropic spin wave behavior and promote strain engineering and optimization of versatile magnonic devices.

SCI ; EI

英语

NI论文

其他

Physics

Physics, Applied

WOS:000796002100007

AIP Publishing

20222012120661

Brillouin scattering ; Gallium compounds ; Lanthanum compounds ; Lattice mismatch ; Magnetic anisotropy ; Manganites ; Neodymium compounds ; Spin waves ; Strontium titanates ; Titanium compounds ; Wave propagation

Magnetism: Basic Concepts and Phenomena:701.2 ; Light/Optics:741.1 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Crystal Lattice:933.1.1

PHYSICS

2-s2.0-85130030219

Scopus

1.Fert Beijing Institute,MIIT Key Laboratory of Spintronics,School of Integrated Circuit Science and Engineering,Beihang University,Beijing,100191,China
2.Department of Physics,Beijing Normal University,Beijing,100875,China
3.Dipartimento di Fisica e Geologia,Universita di Perugia,Perugia,I-06123,Italy
4.Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,University of Chinese Academy of Sciences,Chinese Academy of Sciences,Beijing,100190,China
5.Shenzhen Institute for Quantum Science and Engineering (SIQSE),And Department of Physics,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China
6.International Quantum Academy (SIQA),Shenzhen Branch,Hefei National Laboratory,Shenzhen,Futian District,518055,China
7.Istituto Officina Dei Materiali Del Consiglio Nazionale Delle Ricerche (IOM-CNR),Perugia,c/o Dipartimento di Fisica e Geologia,I-06123,Italy

Wang，Hanchen,Yang，Yuben,Madami，Marco,et al. Anomalous anisotropic spin-wave propagation in thin manganite films with uniaxial magnetic anisotropy[J]. APPLIED PHYSICS LETTERS,2022,120(19).

Wang，Hanchen.,Yang，Yuben.,Madami，Marco.,Wang，Yizhan.,Du，Mian.,...&Yu，Haiming.(2022).Anomalous anisotropic spin-wave propagation in thin manganite films with uniaxial magnetic anisotropy.APPLIED PHYSICS LETTERS,120(19).

Wang，Hanchen,et al."Anomalous anisotropic spin-wave propagation in thin manganite films with uniaxial magnetic anisotropy".APPLIED PHYSICS LETTERS 120.19(2022).