Phase-Controlled Growth of MB₂T₄ Family Crystals via Flux-Assisted Method

Source Data-DSC.xlsx: DSC data of NaCl–KCl eutectic salt mixture, mixed salts & MnSb₂Te₄ powders. Source Data-RMCD.xlsx: Temperature-dependent RMCD signals of MnSb₂Te₄ samples with varying thicknesses and temperatures. Source Data-Squid.xlsx: SQUID data of MnSb₂Te₄ nanosheets and powders, providing temperature- and field-dependent magnetization results. Source Data-Sample Composition Statistics.xlsx: Statistical data of elemental compositions from MnSb₂Te₄ samples synthesized via the flux-assisted method under different growth temperatures. Source Data-magnetic analysis.xlsx: Processed RMCD and SQUID datasets, including the extracted Curie temperature versus thickness relationship, and coercive field variations as a function of thickness and temperature.