We apply nano-mechanical sensors to ultra-sensitive measurements of force, spin, and charge. Traditional “top-down” mechanical devices are now being joined by a new class of self-assembled “bottom-up” structures with a huge potential for improving sensitivity. This new approach to mechanical sensing may pave the way for scientific breakthrough in a variety of fields.
We develop magnetometers capable of measuring the magnetization or stray fields produced by individual nanometer-scale magnets. The basic motivation lies in studying the magnetism of low-dimensional systems and in coming to a greater understanding of their magnetic configurations – configurations often not possible in macroscopic magnets.
We focus on the measurement and control of small ensembles of nuclear spin and on the development and application of nano-MRI by MRFM (magnetic resonance force microscopy). The goal of sub-surface, isotopically-selective imaging on the nanometer-scale – a task not possible by conventional techniques – is a particularly exciting motivator.