Magnetic domain walls in ferromagnetic tracks can be used to trap and transport superparamagnetic beads for lab-on-a-chip applications. Here it is shown that the magnetostatic binding between a domain wall and a superparamagnetic bead suspended in a host fluid leads to a distinct magneto-mechanical resonance under application of a sinusoidal driving field. The characteristic resonant frequency ...

Quantum transduction, the process of converting quantum signals from one form energy to another is a key step in harnessing different physical platforms and associated qubits for information processing. Optoelectromechanics has been effective approaches undertake transduction optical-to-microwave signals, among others such as those using atomic ensembles, collective magnetostatic spin excitatio...

Magnetotactic bacteria navigate along magnetic field lines using well-ordered chains of membrane-enclosed magnetic crystals, referred to as magnetosomes, which have emerged as model to investigate organelle biogenesis in prokaryotic systems. To become divided and segregated faithfully during cytokinesis, the magnetosome chain has to be properly positioned, cleaved and separated against intracha...

Spin waves are promising chargeless information carriers for the future, energetically efficient beyond CMOS systems. Among many advantages ease of achieving nonlinearity, variety possible interactions, and excitation types. Although rapidly developing magnonic research has already yielded impressive realizations, multimode nonlinear effects, particularly with propagating their nanoscale still ...

i.e., that the free currents flow in closed loops. Likewise, the time derivative of the fourth Maxwell equation implies that Jfree has no time dependence in magnetostatics. Often, magnetostatics is taken to be the situation in which ∇ · Jfree = 0 and D, E and Jfree have no time dependence, without explicit assumption that B and H also have no time dependence. Discuss the possibility of waves of...

The analysis of the magnetic structure factor obtained after imaging a field-demagnetized artificial square ice reveals qualitative deviations from what would predict six-vertex model. More specifically, additional features appear for certain $q$ vectors in experimental that are absent theoretical one. Using Monte Carlo simulations, we demonstrate these originate dipolarlike, farther neighbor c...

We derive via the interaction "representation" the many-body wave function for harmonically confined electrons in the presence of a magnetostatic field and perturbed by a spatially homogeneous time-dependent electric field-the Generalized Kohn Theorem (GKT) wave function. In the absence of the harmonic confinement - the uniform electron gas - the GKT wave function reduces to the Kohn Theorem wa...

This paper poses two magnetostatic problems in cylindrical coordinates with different permeabilities for each region. In the first problem the boundary condition of the second kind is used while in the second one, the boundary condition of the third kind is utilized. These problems are solved using the finite element and finite difference methods. In second problem, the results of the finite di...