Self-Organization of Nano-Scale Ferromagnetic Arrays.

Self-organization of large gold nanoparticle arrays.

The synthesis of nanostructured materials with tunable properties is central to developments in nanoscale science and technology. Nonlithographic approaches based on thermodynamically driven self-organization processes are especially appealing because of their potential for low overhead in large-scale production. The spontaneous organization of monolayer-protected metal nanoparticles into perio...

Large Scale Self-organization

Living cells need to impose inner order, transport organelles from site to site inside the cell, withstand external pressures and propagate themselves to different locations. All of these mechanical needs are supplied by the cells cytoskeleton. One of the components of the cytoskeleton is filamentous actin (F-actin). The two ends of F-actin are distinctly different, making it a polar rod with a...

[Nano world created by self-organization].

Magnetic anisotropy of elongated thin ferromagnetic nano-islands for artificial spin ice arrays.

The energetics of thin elongated ferromagnetic nano-islands is considered for some different shapes, aspect ratios and applied magnetic field directions. These nano-island particles are important for artificial spin ice materials. For low temperature, the magnetic internal energy of an individual particle is evaluated numerically as a function of the direction of a particle's net magnetization....

Interaction-induced anisotropy in the onion-to-vortex transition in dense ferromagnetic nano-ring arrays

We show that the onion-to-vortex switching field in dense arrays of nanostructured ferromagnetic rings is strongly dependent on the angle between the applied magnetic field and the array’s main axis. The variations in switching field of up to 8 mT are connected to the anisotropy produced by dipolar interactions between domain walls in the rings. The interactions stabilize the onion state in ali...