Spin-flop transition and magnetic phase diagram in CaCo₂As₂ revealed by torque measurements
Zhang, W. · Nadeem, K. · Xiao, H. · Yang, R. · Xu, B. · Yang, H. · Qiu, X. G.
Original · EN
The magnetic properties of CaCo₂As₂ single crystal was systematically studied by using dc magnetization and magnetic torque measurements. A paramagnetic to antiferromagnetic transition occurs at Tₙ = 74 K with Co spins being aligned parallel to the c axis. For H ∥ c, a field-induced spin-flop transition was observed below Tₙ and a magnetic transition from antiferromagnetic to paramagnetic was inferred from the detailed analysis of magnetization and magnetic torque. Finally, we summarize the magnetic phase diagram of CaCo₂As₂ based on our results in the H-T plane.
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