HfTe₅ (Hafnium Pentatelluride)

HfTe₅ is a chain-like hafnium pentatelluride composed of HfTe₃ prisms linked by tellurium zigzag chains, a candidate topological insulator famous for its extremely large magnetoresistance. It is a model system for studying topological phase transitions under pressure and strain.

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 — weak interchain coupling allows exfoliation into thin flakes.