Experiment study on nanometer moire method with scanning tunneling microscope

A new scanning tunneling microscope (STM) nanomoire method for measuring nanometerdeformation is proposed. In the measurement, the moire pattern is generated by the scanning line of scanning tunneling microscope and the atomic lattice of substance as a specimen grating. The principle of forming STM nanomoire and experimental techniques is described in detail. Nanodeformation virtual strain of high orientated pyrolytic graphite(HOPG) is measured by using of this method, virtual direct strain values gained according to the change from scanning size is compared with the theoretic solution.