Quasicrystalline and Conformal Substrates

There has been considerable research examining the dynamics of particles or particlelike excitations in the presence of ordered or random backgrounds. There are also other kinds of substrate orderings that can arise in nature, such as quasicrystalline orderings, orderings generated by a conformal transformation, or structures where the ordering is affected by curvature. The figure above shows a hexagonal lattice which has been warped by a logarithmic mapping.

Papers:

1. Reversible ratchet effects for vortices in conformal pinning arrays
   C. Reichhardt, D. Ray, and C.J. Olson Reichhardt
   Phys. Rev. B 91 184502 (2015).
   Online version

2. Pinning, ordering, and dynamics of vortices in conformal and gradient pinning arrays
   D. Ray, C. Reichhardt and C.J. Olson Reichhardt
   Phys. Rev. B 90 094502 (2014).
   Online version

3. Vortex states in Archimedean tiling pinning arrays
   D. Ray, C. Reichhardt and C.J. Olson Reichhardt
   Supercond. Sci. Technol. 27 075006 (2014).
   Online version

4. Strongly enhanced pinning of magnetic vortices in type-II superconductors by conformal crystal arrays
   D. Ray, C.J. Olson Reichhardt, B. Janko and C. Reichhardt
   Phys. Rev. Lett. 110 267001 (2013).
   Online version

5. Breaking up on a curved plane
   C. Reichhardt and C.J. Olson Reichhardt Nature Materials 11, 912 (2012).
   Online version

6. Vortex dynamics and symmetry locking on qausiperiodic and periodic substrates
   C.J Olson Reichhardt and C. Reichhardt
   Physica C 479, 45 (2012).
   

7. Dynamical ordering and directional locking for particles moving over quasicrystalline substrates
   C. Reichhardt and C.J. Olson Reichhardt
   Phys. Rev. Lett 106, 060603 (2011).
   Online version

Collaborators

Dipanjan Ray (LANL)

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Last Modified: 1/1/03