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Browsing Duke Faculty Articles by Author "Yellen, Benjamin B."

DukeSpace

Browsing Duke Faculty Articles by Author "Yellen, Benjamin B."

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  • Magnetically tunable self-assembly of colloidal rings
    Li, Kwan H.; Yellen, Benjamin B. (AMER INST PHYSICS, 2010)
    We present a technique using ferrofluid to induce bidisperse suspensions of superparamagnetic and diamagnetic beads to assemble into colloidal ring configurations. The separation distance between particles within the ring ...
  • The synchronization of superparamagnetic beads driven by a micro-magnetic ratchet
    Gao, Lu; Gottron, Norman J., III; Virgin, Lawrie; Yellen, Benjamin B. (ROYAL SOC CHEMISTRY, 2010)
    We present theoretical, numerical, and experimental analyses on the non-linear dynamic behavior of superparamagnetic beads exposed to a periodic array of micro-magnets and an external rotating field. The agreement between ...