A spin-torque probe microscope and methods of using the same are
described. The spin-torque probe microscope includes a cantilever probe
body, a magnetic tip disposed at a distal end of the cantilever probe
body, an electrically conductive sample disposed proximate to the
magnetic tip, an electrical circuit providing a spin-polarized electron
current to the electrically conductive sample, and a vibration detection
element configured to sense vibration frequency of the cantilever probe
body. The spin-polarized electron current is sufficient to alter a local
electron spin or magnetic moment within the electrically conductive
sample and be sensed by the magnetic tip.