Publication
Physical Review Letters
Paper
Direct observation of the precession of individual paramagnetic spins on oxidized silicon surfaces
Abstract
The precession of individual spins on partially oxidized Si(111) surfaces has been detected using a scanning tunneling microscope. The spin precession in a constant magnetic field induces a modulation in the tunneling current at the Larmor frequency. This radio-frequency signal is shown to be localized over distances less than 10 A and follows the expected magnetic field dependence. © 1989 The American Physical Society.