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Published in 2020 at "Small"
DOI: 10.1002/smll.202003141
Abstract: Here, an artificial spin ice lattice is introduced that exhibits unique Ising and non-Ising behavior under specific field switching protocols because of the inclusion of coupled nanomagnets into the unit cell. In the Ising regime,…
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Keywords:
spin ice;
modal frustration;
lattice;
artificial spin ... See more keywords
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Published in 2017 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2017.11.076
Abstract: Abstract Magnetic and magnetocaloric properties of geometrically frustrated antiferromagnetic Ising (IA) and ferromagnetic spin ice (SI) models on a nanocluster with a ‘Star of David’ topology, including next-nearest-neighbor (NNN) interactions, are studied by an exact…
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Keywords:
ice models;
geometrically frustrated;
magnetocaloric effect;
magnetization ... See more keywords
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Published in 2018 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2018.06.030
Abstract: Abstract We have studied the evolution of the magnetic and dynamical properties as well as structural properties of diluted spin ice Dy 2− x La x Ti 2 O 7 , where Dy was partially…
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Keywords:
dynamical properties;
properties diluted;
magnetic dynamical;
diluted spin ... See more keywords
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Published in 2019 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2019.165522
Abstract: Abstract The magnetization reversal process of interconnected pentagonal spin ice systems was investigated using micromagnetic simulations and experimental measurements. Five different systems were investigated, beginning with the interconnected Shakti lattice and introducing deformations with the…
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Keywords:
spin ice;
interconnected pentagonal;
pentagonal spin;
ferromagnetic domains ... See more keywords
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Published in 2021 at "Nano Letters"
DOI: 10.1021/acs.nanolett.1c00650
Abstract: Harnessing high-frequency spin dynamics in three-dimensional (3D) nanostructures may lead to paradigm-shifting, next-generation devices including high density spintronics and neuromorphic systems. Despite remarkable progress in fabrication, the measurement and interpretation of spin dynamics in complex…
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Keywords:
three dimensional;
spin waves;
coherent spin;
artificial spin ... See more keywords
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Published in 2017 at "Nature Communications"
DOI: 10.1038/ncomms14009
Abstract: Frustrated systems, typically characterized by competing interactions that cannot all be simultaneously satisfied, display rich behaviours not found elsewhere in nature. Artificial spin ice takes a materials-by-design approach to studying frustration, where lithographically patterned bar…
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Keywords:
spin ice;
topological frustration;
artificial spin;
frustration ... See more keywords
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1
Published in 2017 at "Nature materials"
DOI: 10.1038/nmat5004
Abstract: An artificial spin ice array exploits two-dimensional chirality to take a step towards technology.
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Keywords:
ice ratchet;
spin ice;
artificial spin;
ratchet made ... See more keywords
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Published in 2017 at "Nature Communications"
DOI: 10.1038/s41467-017-00277-1
Abstract: The complexity embedded in condensed matter fertilizes the discovery of new states of matter, enriched by ingredients like frustration. Illustrating examples in magnetic systems are Kitaev spin liquids, skyrmions phases, or spin ices. These unconventional…
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Keywords:
spin ices;
fragmentation spin;
spin ice;
ice magnetic ... See more keywords
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Published in 2019 at "Nature Communications"
DOI: 10.1038/s41467-019-09187-w
Abstract: Vertex models are an important class of statistical mechanical system that admit exact solutions and exotic physics. Applications include water ice, ferro- and antiferro-electrics, spin ice and artificial spin ice. Here we show that it…
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Keywords:
ice films;
vertex models;
phase transitions;
spin ice ... See more keywords
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Published in 2021 at "Nature Communications"
DOI: 10.1038/s41467-021-22515-3
Abstract: Spin-ices are frustrated magnets that support a particularly rich variety of emergent physics. Typically, it is the interplay of magnetic dipole interactions, spin anisotropy, and geometric frustration on the pyrochlore lattice that drives spin-ice formation.…
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Keywords:
cadmium cyanide;
spin ice;
ice physics;
physics ... See more keywords
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Published in 2018 at "Nature Nanotechnology"
DOI: 10.1038/s41565-018-0162-7
Abstract: Geometric frustration emerges when local interaction energies in an ordered lattice structure cannot be simultaneously minimized, resulting in a large number of degenerate states. The numerous degenerate configurations may lead to practical applications in microelectronics1,…
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Keywords:
spin ice;
artificial spin;
geometric frustration;