Jessica Thomas

Magnetism: Vortex ups and downs

Two new studies explore vortex core switching in ferromagnetic nanodisks, which could have implications for information storage

Surface science: Resolving the identity crisis

Individual atoms on a surface can be identified by measuring the chemical forces between each one and an AFM tip

Graphene: What lies beneath

A study of the atomic structure of graphene supported on a silicon oxide substrate suggests that what is measured reflects not just the graphene itself, but the surface on which it sits

X-ray imaging: Baby steps

With improved optics and intensity, X-ray reflectivity can now provide subnanometre vertical resolution of surface features.