Spontaneous transverse response and amplified switching in superconductors with honeycomb pinning arrays.
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 drive 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.
Reichhardt
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Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Reichhardt
C J Olson
CJ