Enhancement of the Coercive Field and Exchange Bias Effect in Fe3GeTe2/MnPX3 (X = S and Se) van der Waals Heterostructures

• Published in: ACS applied materials & interfaces Vol. 13; no. 20; pp. 24314 - 24320
• Main Authors: Dai, Hongwei, Cheng, Hui, Cai, Menghao, Hao, Qinghua, Xing, Yuntong, Chen, Hongjing, Chen, Xiaodie, Wang, Xia, Han, Jun-Bo
• Format: Journal Article
• Language: English
• Published: American Chemical Society 26.05.2021
• Subjects: circular dichroism spectroscopy; magnetism; Surfaces, Interfaces, and Applications; temperature; van der Waals forces; magnetic proximity effect; van der Waals heterostructures; exchange bias effect; two-dimensional magnets; magneto-optical Kerr effect

Fe3GeTe2/MnPS3 and Fe3GeTe2/MnPSe3 van der Waals heterostructures were fabricated by mechanical exfoliation. Via the magneto-optical Kerr effect and reflected magnetic circular dichroism measurements, we have observed nearly three times enhancement of the coercive field, improvement of Curie tempera...