He Qiang

Paper Publications

Perpendicular antiferromagnetic ordering and canted spins in van der Waals FePS probed by spin Hall magnetoresistance

Release time:2023-07-02  Hits:
Indexed by:Journal paper Journal:Journal of Physics D: Applied Physics Included Journals:SCI Affiliation of Author(s):华中科技大学 Discipline:Engineering First-Level Discipline:Electronic Science And Technology Document Type:J Key Words:spintronics; canted spin; spin Hall magnetoresistance; van der Waals antiferromagnet DOI number:10.1088/1361-6463/ACB560 Abstract:Van der Waals antiferromagnets (AFMs) provide a two-dimensional (2D) platform for spintronic devices with exceptional properties. However, the electric transport features of the magnetic order of van der Waals AFM influenced by different field directions and amplitudes has not been demonstrated systematically. In this letter, we investigate the magnetic texture of the exfoliated van der Waals FePS3, a uniaxial AFM with perpendicular anisotropy, detected by the spin Hall magnetoresistance (SMR). Magnetic field- and temperature- dependent longitudinal magnetoresistance measurements in three orthogonal directions for the exfoliated FePS3/Pt nanostructures are conducted. The modulations in the SMR signal enable the separation of two contributions to the SMR, one of which corresponds to the negative signature of AFM SMR caused by in-plane field rotations, and the other of which is caused by canted spins in perpendicular AFM order. Our findings offer great guidance for further research and investigation using SMR approach of the magnetic texture in van der Waals AFMs.