Contents

24 September 2010
Vol 329, Issue 5999

About The Cover

Cover image expansion

COVER Overlay of a scanning tunneling microscope image of four iron-copper dimers adsorbed on a surface (green) with a snapshot of their electron-spin dynamics (yellow spikes). On page 1628, Loth et al. describe the measurement of electron spin relaxation times of individual atoms extracted from a time series of tunneling current measurements with nanosecond time resolution. Image: Sebastian Loth, IBM Research/Almaden