Topography mage of the O-TiO2(110)-(1×1) surface. The bright and dark rows are O2c and Ti5c rows, respectively, and the bright spot is Oad. (f0=807 kHz, Q=23620, Δf=−70Hz, VDC=0.6V and A=500pm, image size: 3.5x2.0nm2). Experiments were performed with a home-built non-contact (NC) AFM system under ultra-high vacuum conditions (3x10^-11Torr) at 78K, which was operated in frequency modulation (FM). Scanned with a NANOSENSORS SD-T10L100 AFM probe, f0~800kHz.
Image courtesy of Prof. Yahiro Sugawara and Prof. Yan Jun Li, Department of Applied Physics, Graduate School of Engineering, Osaka University