Pb₂Bi₂Te₅ (Lead Bismuth Telluride)

Pb₂Bi₂Te₅ is a layered ternary compound in the lead–bismuth–telluride homologous series, a topological insulator. It crystallizes in a van der Waals structure analogous to Bi₂Te₃.

Growth method: Chemical vapor transport (CVT).

Sample specifications: Individual crystals measure approximately 3–4 mm, with a purity of up to 99.999% (5N), and 2–3 high-quality single-crystal pieces included in each package.

Exfoliation: Moderate — cleaves along the van der Waals planes into thin flakes.