292 citations · 2.9k across the 93 of their papers we have counts for
6 papers · 1 filter
Multi-Step Ordering in Kagome and Square Artificial Spin Ice
C. J. Olson Reichhardt, A. Libal, C. Reichhardt
We show that in colloidal models of artificial kagome and modified square ice systems, a variety of ordering and disordering regimes occur as a function of biasing field, temperatu…
Bidirectional Sorting of Flocking Particles in the Presence of Asymmetric Barriers
Jeffrey A. Drocco, C. J. Olson Reichhardt, C. Reichhardt
We numerically demonstrate bidirectional sorting of flocking particles interacting with an array of asymmetric barriers. Each particle aligns with the average swimming direction of…
Hysteresis and Return Point Memory in Artificial Spin Ice Systems
A. Libal, C. Reichhardt, C. J. Olson Reichhardt
We investigate hysteresis loops and return point memory for artificial square and kagome spin ice systems by cycling an applied bias force and comparing microscopic effective spin…
Dynamically Induced Locking and Unlocking Transitions in Driven Layered Systems with Quenched Disorder
C. Reichhardt, C. J. Olson Reichhardt
Using numerical simulations, we examine a simple model of two or more coupled one-dimensional channels of driven particles with repulsive interactions in the presence of quenched d…
Active Matter on Asymmetric Substrates
C. J. Olson Reichhardt, J. Drocco, T. Mai +2
For collections of particles in a thermal bath interacting with an asymmetric substrate, it is possible for a ratchet effect to occur where the particles undergo a net dc motion in…
Structural Transitions and Dynamical Regimes for Directional Locking of Particles Driven over Periodic Substrates
C. Reichhardt, C. J. Olson Reichhardt
We numerically investigate collective ordering and disordering effects for vortices in type-II superconductors interacting with square and triangular substrate arrays under a dc dr…