Spontaneous Transverse Response and Amplified Switching in Superconductors with Honeycomb Pinning Arrays

Details Spontaneous Transverse Response and Amplified Switching in Superconductors with Honeycomb Pinning Arrays Spontaneous Transverse Response and Amplified Switching in Superconductors with Honeycomb Pinning Arrays

2007-09-13

arxiv.org/abs/0709.2157v2

Phys. Rev. Lett. 100, 167002 (2008)

Physics

Condensed Matter

Superconductivity

4 pages, 4 postscript figures. Version to appear in PRL

Scientific paper

10.1103/PhysRevLett.100.167002

Using numerical simulations, we show that a novel spontaneous transverse response can appear when a longitudinal drive is applied to type-II superconductors with honeycomb pinning arrays in a magnetic field near certain filling fractions. This response is generated by dynamical symmetry breaking that occurs at fields away from commensurability. We find a coherent strongly amplified transverse switching effect when an additional transverse ac current is applied. The transverse ac drive can also be used to control switching in the longitudinal velocity response. We discuss how these effects could be used to create new types of devices such as current effect transistors.

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