Ergodic kinetics, which are critical to equilibrium thermodynamics, can be constrained by a
system's topology. We studied a model nanomagnetic array in which such constraints visibly …

We study the magnetization dynamics in nanomagnets excited by stochastic magnetic fields
to mimic temperature in a micromagnetic framework. The effect of confinement arising from …

Spin and spatial dimensionalities are universal concepts, essential for describing both
phase transitions and dynamics in magnetic materials. Lately, these ideas have been …

We study the temperature and magnetic field dependence of the total magnetic moment of
large-area permalloy artificial square spin ice arrays. The temperature dependence and …

The interplay between topology and energy hierarchy plays a vital role in the collective
magnetic order in artificial ferroic systems. Here we investigate, experimentally, the effect of …

We analyze the thermal fluctuations of magnetization textures in two stray field coupled
elements, forming mesospins. To this end, the energy landscape associated with the thermal …

We present a technique for determining the micro-scale AC susceptibility of magnetic
materials. We use the magnetic field sensing properties of nitrogen-vacancy (NV−) centers …

Lithographically defined arrays of nanomagnets are well placed for application in areas
such as probabilistic computing or reconfigurable magnonics due to their emergent …

AC susceptibility offers a very useful tool to probe spin dynamics in magnetic materials,
superconductors, spin glasses, etc. A home built low cost AC susceptometer proved to be a …

Applied magnetic fields are an important tuning parameter for artificial spin ice (ASI)
systems, as they can drive phase transitions between different magnetic ground states or …