Atomic Imaging of Phase Transformation and Self-Intercalation of Two-Dimensional CrS₂ by <i>In Situ</i> TEM.

ABSTRACT: Controlling phase transitions in two-dimensional (2D) materials offers a powerful route for engineering novel electronic and magnetic functionalities. However, atomically resolved visualization of these dynamic processes remains a significant challenge. Herein, we report the synthesis of ultrathin (1.6 nm), single-crystal 1T-CrS₂ nanosheets via atmospheric-pressure chemical vapor deposition (APCVD) and uncover their thermal transformation pathway using in situ heating transmission electron microscopy (TEM). Real-time atomic-scale imaging reveals that upon heating to 500 °C, the material undergoes an irreversible structural and magnetic transformation from a layered, antiferromagnetic 1T-CrS₂ structure into a nonlayered, ferrimagnetic Cr₂S₃

SUBMITTER: Chou PY 

PROVIDER: S-EPMC12581116 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature