6533b82ffe1ef96bd1294ff9

RESEARCH PRODUCT

Inhomogeneous-strain-induced magnetic vortex cluster in one-dimensional manganite wire

Yuanwei SunYu WangChangmin XiongCui XiaoJie WangYuelin ZhangRizwan UllahJing WangHoubing HuangMathias KläuiXueyun WangSimone FinizioMuhammad Abdullah MalikIrfan AhmedPeng GaoIftikhar Ahmed MalikJinxing Zhang

subject

PhysicsMultidisciplinaryCondensed matter physicsSpintronicsSpin structure010502 geochemistry & geophysicsManganite01 natural sciencesVortex stateSpin waveCondensed Matter::Strongly Correlated ElectronsMagnetic force microscopeAnisotropy0105 earth and related environmental sciencesSpin-½

description

Abstract Mixed-valance manganites with strong electron correlation exhibit strong potential for spintronics, where emergent magnetic behaviors, such as propagation of high-frequency spin waves and giant topological Hall Effects can be driven by their mesoscale spin textures. Here, we create magnetic vortex clusters with flux closure spin configurations in single-crystal La0.67Sr0.33MnO3 wire. A distinctive transformation from out-of-plane domains to a vortex state is directly visualized using magnetic force microscopy at 4 K in wires when the width is below 1.0 μm. The phase-field modeling indicates that the inhomogeneous strain, accompanying with shape anisotropy, plays a key role for stabilizing the flux-closure spin structure. This work offers a new perspective for understanding and manipulating the non-trivial spin textures in strongly correlated systems.

yearjournalcountryeditionlanguage
2020-02-01Science Bulletin
https://doi.org/10.1016/j.scib.2019.11.025