MECHANICALLY DETECTED NUCLEAR-MAGNETIC-RESONANCE IMAGE OF A MULTILAYER SYSTEM AT NORMAL-PRESSURE

Magnetic resonance force microscopy (MRFM) is a new microscopy techniq ue that combines the spin selective detection of nuclear or electron s pin resonance with the high spatial resolution of atomic force microsc opy, Ln this letter we present MRFM measurements on a three-layer syst em in the micron range. We detected the one-dimensional distribution o f proton spins in a sample that consisted of two-ammonium sulphate lay ers and an intermediate layer of sodium chloride. The experiments were done at room temperature and normal pressure, in contrast to earlier MRFM measurements that have been carried out in vacuum at room tempera ture or low temperatures. (C) 1997 American Institute of Physics.