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Title: Magnetic structure and metamagnetic transitions in the van der Waals antiferromagnet CrPS4
Authors: Peng, YX
Ding, SL
Cheng, M
Hu, QF
Yang, J
Wang, FG
Xue, MZ
Liu, ZC
Lin, Z
Avdeev, M
Hou, YL
Yang, WY
Zheng, Y
Yang, JB
Keywords: Magnetic properties
Antiferromagnetic materials
Neutron diffraction
Phase diagrams
Issue Date: 5-Jun-2020
Publisher: Wiley
Citation: Peng, Y., Ding, S., Cheng, M., Hu, Q., Yang, J., Wang, F., Xue, M., Liu, Z., Lin, Z., Avdeev, M., Hou, Y., Yang, W., Zheng, Y., & Yang, J (2020). Magnetic structure and metamagnetic transitions in the van der Waals antiferromagnet CrPS4. Advanced Materials, 32(28), 2001200. doi:10.1002/adma.202001200
Abstract: In 2D magnets, interlayer exchange coupling is generally weak due to the van der Waals layered structure but it still plays a vital role in stabilizing the long-range magnetic ordering and determining the magnetic properties. Using complementary neutron diffraction, magnetic, and torque measurements, the complete magnetic phase diagram of CrPS4 crystals is determined. CrPS4 shows an antiferromagnetic ground state (A-type) formed by out-of-plane ferromagnetic monolayers with interlayer antiferromagnetic coupling along the c axis below TN = 38 K. Due to small magnetic anisotropy energy and weak interlayer coupling, the low-field metamagnetic transitions in CrPS4, that is, a spin-flop transition at ≈0.7 T and a spin-flip transition from antiferromagnetic to ferromagnetic under a relatively low field of 8 T, can be realized for H∥c. Intriguingly, with an inherent in-plane lattice anisotropy, spin-flop-induced moment realignment in CrPS4 for H∥c is parallel to the quasi-1D chains of CrS6 octahedra. The peculiar metamagnetic transitions and in-plane anisotropy make few-layer CrPS4 flakes a fascinating platform for studying 2D magnetism and for exploring prototype device applications in spintronics and optoelectronics. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN: 1521-4095
Appears in Collections:Journal Articles

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