High-quality single crystals and polycrystalline samples were obtained by mixing molybdenum foil (99.95%) and tellurium lumps (99.999+%) in a ratio of 1:20 in a quartz tube and sealed under vacuum. The reagents were heated to 1000°C within 10 hours. They dwelled at this temperature for 24 hours, before they were cooled to 800°C within 30 hours (polycrystalline sample) or 100 hours (single crystals). At 800°C, the tellurium flux was spinned off and the samples were quenched in air. The obtained MoTe2 samples were annealed at 400°C for 12 hours to remove any residual tellurium.

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