Fig. 2: Morphological and structural characterization of the as-synthesized FeTe samples.
From: Phase-controllable growth of ultrathin 2D magnetic FeTe crystals
a, d Typical optical images of as-grown tetragonal (a) and hexagonal (d) FeTe crystals on SiO2/Si substrates. b, e AFM images of the square FeTe nanoplate with a thickness of 3.6 nm and the trigonal FeTe nanoplate with a thickness of 2.8 nm. c, f Typical Raman spectra of tetragonal and hexagonal FeTe nanoplates. Scale bars: 20 μm in a, d; 2 μm in b; 3 μm in e.
