Kavli Affiliate: Long Zhang
| First 5 Authors: Long Zhang, Zhongzhu Jiang, Yugang Zhang, Jing Zhang, Aifeng Wang
| Summary:
Two-dimensional (2D) magnetic materials have attracted considerable interest
owing to their potential applications in spintronics and fundamental
investigations into low-dimensional magnetism. Cr2Te3, a quasi 2D non van der
Waals magnet, exhibits a complex magnetic phase diagram due to competing
magnetic interactions within and between layers. However, the precise nature
and evolution of these magnetic phases remain unclear. Here, we utilize an
ultrahigh-sensitive composite magnetoelectric technique, which probes the ac
magnetostrictive coefficient, to systematically explore the temperature
magnetic field phase diagram of Cr2Te3 single crystals. Our results reveal the
coexistence of multiple magnetic phases, including canted ferromagnetic,
antiferromagnetic, and paramagnetic states. Another canted ferromagnetic phase
and a possible triple point have been proposed. The updated phase diagram
provides deeper insights into the specific spin configurations associated with
each phase. These findings also highlight the decoupled magnetic ordering
between the Cr1/Cr3 layers and the Cr2 layer near the magnetic ordering
temperature.
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