3D Imaging by Use of Magnetic Resonance Force Microscope

Magnetic Resonance Force Microscope(MRFM) may become a potential instrument to investigate materials with nanometer spatial resolution in a manner equivalent to the conventional MRI spectrometer. The 3D image reconstruction for an extremely tiny sample as well as the 2D cross section at any angle without physical destruction nor chemical damage is one of the advanced capabilities of MRFM. Such promising aspects could let us dream of the 3D visualization for a single cell of biological materials, and the further perspective for a signal detection out of a single electronic or nuclear spin. We have started the development of MRFM spectrometer since two years for the sake of establishing 3D imaging with sub-micrometer resolution. Although our current experimental condition in 2GHz ESR-mode at room temperature is not quite adequate for the practical application, we try to make an effort to build so as to bear imaging experiments which require a long acquisition over weeks. We will show 3D images of a few micrometer DPPHs taken by our spectrometer, and describe our methods to compensate and minimize ambiguous error due to drifts.