Fig. 2: High-pressure X-ray diffraction.
From: Charge-density-wave quantum critical point under pressure in 2H-TaSe2
a Hexagonal high-temperature structure of 2H-TaSe2 (P63/mmc, #194). Lines indicate the unit cell (a = b = 3.425 Å, c = 12.57 Å). b Schematics of a diamond anvil cell and scattering geometry used for the HP-LT XRD experiments. c Observed x-ray diffraction patterns for a 2H-TaSe2 single crystal at T = 40 K and p = 0.3 GPa shown for a (HK0) plane. The blue rectangle highlights the section for which results of a more detailed analysis are shown in Fig. 4. The blue arrow indicates spurious Bragg scattering from the diamond single crystals.
