TaS2 bulk (2H phase)
2H-phase TaS2 is a 2D superconductor with critical temperature (Tc) of 0.2K, and exhibit incommensurate charge density waves (CDW) below ~80K. Our crystals are grown by either flux zone method to achieve defect free crystals or CVT method which is known to introduce halide contaminants in the crystal. By default, we ship flux zone 2H-TaS2 crystals with guaranteed superconducting and CDW behavior (the only commercially vdW TaS2 crystals with guaranteed CDW and SC behavior). Our crystals are environmentally stable which means that they can be handled safely under ambient conditions without any need for chemical fume hood or inert glove box.
While both 2H- and 1T-phase TaS2 crystals exhibit CDW behavior, temperature onset for CDW behavior show considerable differences (1T~175K where as 2H~80K). Our TaS2 crystals are perfectly layered, cleaved in 0001 direction, with ultra-low defect concentration.