43 citations · 188 across the 19 of their papers we have counts for
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Spin wave excitation and directional propagation in presence of magnetic charges in square artificial spin ice
Nimisha Arora, Pintu Das
Artificial spin ice is a special class of engineered lattice of highly shape anisotropic single domain magnetic nanostructures which is used as one of the model systems to study th…
Spin wave spectral probing of possible microstates in building-block of macroscopically degenerate artificial spin ice
Nimisha Arora, Pintu Das
We have investigated the spin wave modes of strongly dipolar coupled, highly anisotropic nanoislands forming square artificial spin ice system using micromagnetic simulation in MUM…
Controlled creation and annihilation of stringless robust emergent magnetic monopoles in artificial spin ice
N. Keswani, R. Lopes, Y. Nakajima +6
Magnetic analogue of an isolated free electric charge, i.e., a magnet with a single north or south pole, is a long sought-after particle which remains elusive so far. In magnetical…
Accessing low-energy magnetic microstates in symmetry-broken isolated square artificial spin ice vertices with magnetic field
Neeti Keswani, Ranveer Singh, Yoshikata Nakajima +3
In artificial spin ice systems, an interplay of defects and dipolar interactions is expected to play important roles in stabilizing different collective magnetic states. In this wo…
Magnetization reversal of dipolar coupled nanomagnets studied by two-dimensional electron gas based micro-Hall magnetometry
N. Keswani, Y. Nakajima, N. Chauhan +6
We report here the results of two-dimensional electron gas based micro-Hall magnetometry measurements and micromagnetic simulations of dipolar coupled nanomagnets of Ni80Fe20 arran…
On the micromagnetic behavior of dipolar-coupled nanomagnets in defective square artificial spin ice systems
Neeti Keswani, Pintu Das
We report here the results of micromagnetic simulations of square artificial spin ice (ASI) systems with defects. The defects are introduced by misaligning of a nanomagnet at the v…