MnₓGe₁₋ₓBi₂Te₄ Solid-Solution Single Crystals (Manganese Germanium Bismuth Telluride)

We offer the complete MnₓGe₁₋ₓBi₂Te₄ compositional series, covering x = 0.2, 0.4, 0.45, 0.5, 0.7, and 0.8, forming a continuous magnetic-tuning gradient from the Ge-dominated to the Mn-dominated regime.

This series consists of layered van der Waals magnetic topological materials (space group R3̄m). Substituting Mn for Ge on the cation site continuously tunes the magnetic ground state, ordering temperature, interlayer exchange coupling, and Fermi level, making it an ideal materials platform for studying the quantum anomalous Hall effect, axion-insulator states, and magnetically tunable topological transport.

The complete compositional gradient enables systematic composition–magnetism–topology studies without cross-referencing samples from different sources.