Colloids in substrate image


Colloidal Particles on Substrates

Colloidal crystals are an ideal system in which to study the general problem of ordering and dynamics in 2D, since the particle size permits direct imaging of the particle locations and motion. A considerable amount of work has been conducted on the melting of 2D colloidal crystals in the absence of a substrate. In addition, a number of experimental and theoretical studies have considered colloidal crystallization and melting in 2D systems with periodic 1D and 2D substrates, where a rich variety of crystalline states can be stabilized. Colloid crystals are also ideal for studing the ordering and dynamics of an elastic media interacting with random substrates, a problem that is relevant to a wide variety of systems such as superconducting vortices, Wigner crystals, and charge-density waves. Open issues include the nature of the dynamical response to applied forces, as well as whether an order to disorder transition occurs as the strength of the random substrate increases.

Papers:

  1. Kibble-Zurek mechanism for nonequilibrium phase transitions in driven systems with quenched disorder
    C.J.O. Reichhardt, A. del Campo, and C. Reichhardt
    Commun. Phys. 5, 173 (2022). arXiv


  2. Colloidal dynamics on a choreographic time crystal
    A. Libal, T. Balazs, C. Reichhardt, and C.J.O. Reichhardt
    Phys. Rev. Lett. 124, 208004 (2020). arXiv


  3. Avalanches, plasticity, and ordering in colloidal crystals under compression
     D. McDermott, C.J. Olson Reichhardt and C. Reichhardt
    Phys. Rev. E 93, 062607 (2016). arXiv


  4. Avalanches and plasticity for colloids in a time dependent optical trap
    C.J. Olson Reichhardt, D. McDermott, and C. Reichhardt
    Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 954818 (2015).


  5. Dynamic regimes for driven colloidal particles on a periodic substrate at commensurate and incommensurate fillings
    D. McDermott, J. Amelang, C.J. Olson Reichhardt, and C. Reichhardt
    Phys. Rev. E 88, 062301 (2013). arXiv


  6. Frustration effects and grain boundaries in colloidal particle orderings on optical substrates
    D. McDermott, A. Libal, G.W. Chern, C. Reichhardt, and C.J. Olson Reichhardt
    Proc. SPIE 8810, Optical Trapping and Optical Micromanipulation X, 881013 (2013).


  7. Domain and stripe formation between hexagonal and square ordered fillings of colloidal particles on periodic pinning substrates
    D. McDermott, J. Amelang, L.M. Lopatina, C.J. Olson Reichhardt, and C. Reichhardt
    Soft Matter 9, 4607 (2013). arXiv


  8. Structural transitions and dynamical regimes for directional locking of vortices and colloids driven over periodic substrates
     C. Reichhardt and C.J. Olson Reichhardt
    J. Phys.: Condens. Matter 24, 225702 (2012). arXiv


  9. Statics and dynamics of Yukawa cluster crystals on ordered substrates
    C. Reichhardt and C.J. Olson Reichhardt
    Phys. Rev. E 85, 051401 (2012). arXiv


  10. Dynamically induced locking and unlocking transitions in driven layered systems with quenched disorder
    C. Reichhardt and C.J. Olson Reichhardt
    Phys. Rev. B 84, 174208 (2011). arXiv


  11. Dynamics and directional locking of colloids on quasicrystalline substrates
    C. Reichhardt and C.J. Olson Reichhardt
    Proc. SPIE 8097, Optical Trapping and Optical Micromanipulation VIII, 80970V (2011).


  12. Characterizing plastic depinning dynamics with the fluctuation theorem
    J.A. Drocco, C.J. Olson Reichhardt, and C. Reichhardt
    Eur. Phys. J. E 34, 117 (2011). arXiv


  13. The effect of pinning on drag in coupled one-dimensional channels of particles
    C. Bairnsfather, C. Reichhardt, and C.J. Olson Reichhardt
    EPL 94, 18001 (2011). arXiv


  14. Positive and negative drag, dynamic phases, and commensurability in coupled one-dimensional channels of particles with Yukawa interactions
    C. Reichhardt, C. Bairnsfather, and C.J. Olson Reichhardt
    Phys. Rev. E 83, 061404 (2011). arXiv


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


  16. Pattern switching and polarizibility for colloids in optical trap arrays
     C. Reichhardt and C.J. Olson Reichhardt,
    Phys. Rev. E 80, 022401 (2009). arXiv


  17. Nonequilibrium phases for driven particle systems with effective orientational degrees of freedom
     C. Reichhardt and C.J. Olson Reichhardt,
    Phys. Rev. E 79, 061403 (2009). arXiv


  18. Statics and dynamics of colloidal particles on optical trap arrays
    C. Reichhardt and C.J. Olson Reichhardt
    Proc. SPIE 7400, Optical Trapping and Optical Micromanipulation VI, 74000J (2009).


  19. Enhancing mixing and diffusion with plastic flow
     A. Libal, C. Reichhardt, and C.J. Olson Reichhardt
    Phys. Rev. E 78, 031401 (2008). arXiv


  20. Viscous decoupling transitions for individually dragged particles in systems with quenched disorder
     C.J. Olson Reichhardt and C. Reichhardt
    Phys. Rev. E 78, 011402 (2008). arXiv


  21. Disordering transitions and peak effect in polydisperse particle systems
     C. Reichhardt and C.J. Olson Reichhardt
    Phys. Rev. E 77, 041401 (2008). arXiv


  22. Stripes, clusters, and nonequilibrium ordering for bidisperse colloids with repulsive interactions
     C. Reichhardt and C.J. Olson Reichhardt
    Phys. Rev. E Rapid Communications 75, 040402 (2007). arXiv


  23. Heterogeneities and topological defects in two-dimensional pinned liquids
     J.-X. Lin, C. Reichhardt, Z. Nussinov, L.P. Pryadko, and C.J. Olson Reichhardt
    Phys. Rev. E 73, 061401 (2006). arXiv


  24. Coarsening of topological defects in oscillating systems with quenched disorder
     C. Reichhardt and C.J. Olson Reichhardt
    Phys. Rev. E 73, 046122 (2006). arXiv


  25. Pinning and dynamics of colloids on one dimensional periodic potentials
    C. Reichhardt and C.J. Olson Reichhardt
    Phys. Rev. E 72, 032401 (2005). arXiv


  26. Ordering and melting in colloidal molecular crystal mixtures
     C. Reichhardt and C.J. Olson Reichhardt
    Phys. Rev. E 71, 062403 (2005). arXiv


  27. Re-entrant disordering of colloidal molecular crystals on two-dimensional periodic substrates
    M. Mikulis, C.J. Olson Reichhardt, C. Reichhardt, R.T. Scalettar, and G.T. Zimanyi
    J. Phys.: Condens. Matter 16, 7909 (2004). arXiv


  28. Dynamic regimes and spontaneous symmetry breaking for driven colloids on triangular substrates
    C. Reichhardt and C.J. Olson Reichhardt
    Europhys. Lett. 68, 303 (2004). arXiv


  29. Statics and dynamics of colloidal particles in periodic traps
    C. Reichhardt and C.J. Olson Reichhardt
    Proc. SPIE 5514, Optical Trapping and Optical Micromanipulation, 352 (2004).


  30. Structure and melting of two-species charged clusters in a parabolic trap
    J.A. Drocco, C.J. Olson Reichhardt, C. Reichhardt, and B. Janko
    Phys. Rev. E 68, 060401(R) (2003). arXiv
    Images of colloid configurations


  31. Frustration and melting of colloidal molecular crystals
    C.J. Olson Reichhardt and C. Reichhardt
    J. Phys. A: Math. Gen. 36, 5841 (2003). arXiv


  32. Colloidal dynamics on disordered substrates
    C. Reichhardt and C.J. Olson
    Phys. Rev. Lett. 89, 078301 (2002). arXiv


  33. Novel colloidal crystalline states on two dimensional periodic substrates
    C. Reichhardt and C.J. Olson
    Phys. Rev. Lett. 88, 248301 (2002). arXiv

Last modified November 16, 2016