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Figure 2 | Nanoscale Research Letters

Figure 2

From: Tailoring of polar and nonpolar ZnO planes on MgO (001) substrates through molecular beam epitaxy

Figure 2

RHEED results. (a) RHEED pattern of the MgO (001) substrate prior to the ZnO film growth along the [001] azimuth. (b) RHEED pattern of the ZnO film surface grown at 420°C along the [1-210] azimuth. (c) RHEED pattern of the nonpolar single crystal ZnO surface along the [1-210] azimuth. (d) RHEED pattern of the polar homoepitaxial ZnO film surface along the [110] azimuth. (e) RHEED pattern of the ZnO film surface grown at 100°C, which shows the combination of the [110] and [1-210] azimuths. This indicates of the coexistence of two domains. (f) RHEED pattern of the polar homoepitaxial ZnO film polar surface along the [1-210] azimuth.

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