Small molecule imaging semiconductors

Many beam lattice images obtained at 200 kV from thin regions (5nm) in V2O3 crystals for showing the importance of the defocus value and crystal thickness to interpret the images in crystals of relatively small unit cells (two molecule rhomboedral cell with ur = 5.473nm and a = 53.79°). This crystal depicts also a metal-semiconductor phase transition at about 150 K, which can be easily observed by HREM [16]. 

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