About the cover

August 2014 Volume 13 No 8

The excitations that determine the low-temperature properties of ferromagnetic materials are called spin waves. Using a combination of inelastic electron tunnelling spectroscopy and numerical simulations, the spin waves occurring in a one-dimensional chain of iron atoms deposited on Cu2N are now imaged, and their dynamics examined.

Letter p782; News & Views p770

IMAGE: SANDER OTTE

COVER DESIGN: DAVID SHAND