Probing the manipulation of antiferromagnetic order in CuMnAs films using neutron diffraction
Probing the manipulation of antiferromagnetic order in CuMnAs films using neutron diffraction
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DOI：
10.1063/5.0103390
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发表时间：
2022-08
影响因子：
4
通讯作者：
S. Poole;L. X. Barton;M. Wang;P. Manuel;D. Khalyavin;S. Langridge;K. Edmonds;R. Campion;V'it Nov'ak;P. Wadley
中科院分区：
文献类型：
--
作者：
S. Poole;L. X. Barton;M. Wang;P. Manuel;D. Khalyavin;S. Langridge;K. Edmonds;R. Campion;V'it Nov'ak;P. Wadley
我们描述了使用中子衍射测量反铁磁CuMnAs薄膜的单轴磁各向异性和Néel矢量的自旋翻转旋转。对于薄至20 nm的薄膜，在磁场下观察到磁性（100）峰的抑制，表明它们经历自旋翻转转变。中子衍射和电输运测量的自旋翻转旋转在同一层中具有相似的形状和滞后的曲线之间发现良好的协议，而中子测量提供了一个定量的确定的自旋翻转延伸整个反铁磁层。
We describe measurements of the uniaxial magnetic anisotropy and spin-flop rotation of the Néel vector in antiferromagnetic CuMnAs thin films using neutron diffraction. The suppression of the magnetic (100) peak under magnetic fields is observed for films as thin as 20 nm, indicating that they undergo a spin-flop transition. Good agreement is found between neutron diffraction and electrical transport measurements of the spin-flop rotation in the same layer with similar shape and hysteresis of the obtained curves, while the neutron measurements provide a quantitative determination of the spin flop extending throughout the antiferromagnet layer.