Disorder induced phase transition in magnetic higher-order topological insulator: A machine learning study<xref rid="cpb_28_11_117301_fn1" ref-type="fn">*</xref><fn id="cpb_28_11_117301_fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. 11822407) and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China.</p></fn>

Disorder induced phase transition in magnetic higher-order topological insulator: A machine learning study**

Project supported by the National Natural Science Foundation of China (Grant No. 11822407) and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China.

Su Zixian¹, Kang Yanzhuo², Zhang Bofeng¹, Zhang Zhiqiang^{1, †}, Jiang Hua^{1, 3}

Clean sample phase diagram. The horizontal axis is the mass term m and the vertical axis is the magnetic field B. Here, the green, white, and red areas correspond to the normal insulator (NI), Chern insulator (CI), and second-order topological insulator (SOTI), respectively. The blue dotted line in the figure is m = t. Magnetic field B is within [−4t, 4t]. Other parameters in this article are all set to t = 1, Δ = t/4, and λ = t.