2012-01-31The Ehrenberg–Siday–Aharonov–Bohm effect in graphene rings |
Quantum interference in mesoscopic ring structures based on graphene can be influenced by external magnetic field. As was first predicted by Ehrenberg and Siday in 1949, a magnetic field piercing a ring creates vector-potential along the ring, which changes the phase of the electronic de Broglie waves. This effect has now been confirmed by experiments on graphene rings. Graphene is a novel material, which brought a Nobel prize to Novoselov and Geim, who discovered it. Novel, graphene-specific features discovered on graphene rings include so-called Klein tunneling and specular Andreev reflection.
The Ehrenberg–Siday–Aharonov–Bohm effect in graphene rings
