Detecting topological phase transition in monolayer jacutingaite Pt2HgSe3 via thermal and magnetic properties

Chúng tôi vui mừng thông báo rằng GS.TS. Trần Công Phong và các đồng nghiệp đã xuất bản công trình có tựa đề “Detecting topological phase transition in monolayer jacutingaite Pt2HgSe3 via thermal and magnetic properties” trên tạp chí Physica E: Low-dimensional Systems and Nanostructures.

Tóm tắt:

We investigate the topological properties of monolayer jacutingaite Pt₂HgSe₃ by analyzing its thermal and magnetic responses under static and dynamic electric fields. In doing so, we use the Kane–Mele model and the semiclassical Boltzmann approach. Through semiclassical calculations, we demonstrate how topological phase transitions induced by these fields are reflected in the material’s electronic heat capacity and Pauli spin susceptibility. We find that in the semimetallic phase, the low-temperature regime exhibits the highest magnitudes of these properties. In contrast, the responses are weaker and stronger for the band insulator and quantum Hall insulator phases, respectively, than the pristine quantum spin Hall insulator phase. This work offers a pathway for detecting topological features in the thermal and magnetic properties of materials.