Results 41 to 50 of about 73,779 (261)

Temperature-dependent collective magnetization reversal in a network of ferromagnetic nanowires

open access: yesAIP Advances, 2021
The collective behavior of geometrically frustrated magnetization in connected networks of ferromagnetic nanowires, known as artificial spin ice, leads to complex magnetotransport behavior in those structures.
Sergi Lendínez   +4 more
doaj   +1 more source

Melting artificial spin ice

open access: yesNew Journal of Physics, 2012
Artificial spin ice arrays of micromagnetic islands are a means of engineering additional energy scales and frustration into magnetic materials. Despite much progress in elucidating the properties of such arrays, the `spins' in the systems studied so far have no thermal dynamics as the kinetic constraints are too high.
Kapaklis, Vassilios   +9 more
openaire   +2 more sources

Angular Dependent Magnetization Dynamics of Kagome Artificial Spin Ice Incorporating Topological Defects [PDF]

open access: yes, 2017
We report angular-dependent spin-wave spectroscopy on kagome artificial spin ice made of large arrays of interconnected Ni80Fe20 nanobars. Spectra taken in saturated and disordered states exhibit a series of resonances with characteristic in-plane ...
Bhat, V. S.   +3 more
core   +2 more sources

Reservoir Computing in Artificial Spin Ice [PDF]

open access: yesThe 2020 Conference on Artificial Life, 2020
Artificial spin ice (ASI) are systems of coupled nanomagnets arranged on a 2D lattice. ASIs are promising computing substrates due to the rich variety of emergent behavior, accompanied by considera...
Johannes H. Jensen, Gunnar Tufte
openaire   +1 more source

Magnetic Tunability of Permalloy Artificial Spin Ice Structures [PDF]

open access: yesPhysical Review Applied, 2020
This paper reports tunable Ni80Fe20 artificial spin ice structures of various geometrical lattice arrangements as a function of film thickness. We achieve the magnetic tunability by three distinct methods namely, geometrical arrangements of nanomagnetic elements in the form of square, kagome, and triangular lattices with the variation in film ...
Talapatra, A., Singh, N., Adeyeye, A. O.
openaire   +2 more sources

Analysis of Magnetization Change with Temperature in an Artificial Spin Ice Network by Three Dimensional Finite Element Modeling

open access: yesCumhuriyet Science Journal, 2022
A three dimensional finite element model calculation was constructed, which includes different submodels, all as a function of temperature, using an iterative approach, to investigate permalloy artificial spin ice network with square geometry on thermal ...
İbrahim Çinar
doaj   +1 more source

Unhappy vertices in artificial spin ice: new degeneracies from vertex frustration

open access: yesNew Journal of Physics, 2013
In 1935, Pauling estimated the residual entropy of water ice with remarkable accuracy by considering the degeneracy of the ice rule solely at the vertex level . Indeed, his estimate works well for both the three-dimensional pyrochlore lattice and the two-
Muir J Morrison   +2 more
doaj   +1 more source

Exploring thermally induced states in square artificial spin-ice arrays

open access: yesNew Journal of Physics, 2013
We present a methodology to explore experimentally the formation of thermally induced long-range ground-state ordering in artificial spin-ice systems. Our novel approach is based on the thermalization from a square artificial spin-ice array of elongated ...
J M Porro   +3 more
doaj   +1 more source

Crystalline phases and devil's staircase in qubit spin ice

open access: yesPhysical Review Research, 2023
Motivated by the recent realization of an artificial quantum spin ice in an array of superconducting qubits with tunable parameters [King et al., Science 373, 576 (2021)0036-807510.1126/science.abe2824], we scrutinize a quantum six-vertex model on the ...
Márk Kondákor, Karlo Penc
doaj   +1 more source

Disordered kagomé spin ice

open access: yesAIP Advances, 2018
Artificial spin ice is made from a large array of patterned magnetic nanoislands designed to mimic naturally occurring spin ice materials. The geometrical arrangement of the kagomé lattice guarantees a frustrated arrangement of the islands’ magnetic ...
Noah Greenberg, Andrew Kunz
doaj   +1 more source

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