Probing Lattice Vibrations at SiO <sub>2</sub> /Si Surface and Interface with Nanometer Resolution
Probing Lattice Vibrations at SiO <sub>2</sub> /Si Surface and Interface with Nanometer Resolution
Recent advances in monochromatic aberration corrected electron microscopy make it possible to detect the lattice vibration with both high-energy resolution and high spatial resolution. Here, we use sub-10 meV electron energy loss spectroscopy to investigate the local vibrational properties at surface and interface of an amorphous SiO$_2$ (a-SiO$_2$) thin film …