Synthesis of CrO single crystal slices by firing under water vapor atmosphere

Abstract In this letter, CrO single crystal slices were successfully synthesized on chromium substrate under water vapor atmosphere by firing. XRD pattern indicated that relatively weak diffraction peaks belonged to CrO slices while the intensive ones belonged to Cr₂O₃ under the layer of CrO, which was further proved by HR-TEM image. The as-synthesized CrO single crystal slices were uniform with a thickness of about 100 nm when obtained at 1080 °C for 4 h. And the SAED result showed that the thickness direction of CrO single crystal slices is «111» orientation. Moreover, the formation mechanism of the CrO single crystal slices was given.