Fig. 1: Material identification of the as-grown Ta2Se single crystal.
From: Identification of phonon vibrational modes for the layered Ta2Se metal-rich chalcogenide
a Crystal structure showing a layered tetragonal arrangement of Ta1, Ta2, and Se atoms. b Optical microscopy images of the Ta2Se single crystal surface before and after exfoliation. c XRD pattern of the Ta2Se single crystal exhibiting only (00l) plane peaks. d EDS spectrum confirming the atomic ratio of Ta:Se = 2:1.
