ITO COATED GLASS (100×100×1.1~~20 ohms/sq)
ITO COATED GLASS (100×100×1.1~~20 ohms/sq) Original price was: $330.00.Current price is: $245.00.
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FTO COATED GLASS (50*25*2.2)
FTO COATED GLASS (50*25*2.2) Original price was: $155.00.Current price is: $120.00.

HfTe5

Original price was: $1,585.00.Current price is: $793.00.

HfTe5 is a member of layered transition metal pentatelluride material family. It crystallizes in orthorhombic phase and our crystals exhibit perfectly layered nature. HfTe5 is at the boundary of weak &…

Description

DESCRIPTION

HfTe5 is a member of layered transition metal pentatelluride material family. It crystallizes in orthorhombic phase and our crystals exhibit perfectly layered nature. HfTe5 is at the boundary of weak & strong topological insulator (TI) and might crossover to a Dirac semimetal. It also exhibit superconducting state under applied hydrostatic pressure. Our crystals are grown slowly in 2 months time period using our own growth techniques using 6N purity precursors. Resulting crystals have mm size single domains (world record), perfectly layered nature (ideal for exfoliation and large area monolayer production). The material exfoliates rather easily but in air the surface transforms into TeO2 or other tellurium oxide complexes due to high electron affinity of Hf and HfTe5 surfaces. Bulk crystals are stable in air but monolayer require handling in the glovebox or inert gas conditions. Samples are shipped under microTorr pressure sample boxes back-filled with Ar to safely ship the samples.Samples can be easily exfoliated into HfTe5 sheets wherein each HfTe5 chain is quasi-weakly bonded to each other.The properties of HfTe5 vdW crystals

Sample size ~2-4 mm in size
Material properties Anisotropic topological insulator, semimetal, superconductor
Crystal structure Orthorhombic phase
Unit cell parameters a= 0.403 nm b=0.816 nm, c=1.388 nm, α=β=90°, γ=104.3°
Production method Chemical vapor transport 99.9995% purity
Characterization methods SIMS, XRD, EDS, Raman
Shipping and Delivery

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