Modal Frustration and Periodicity Breaking in Artificial Spin Ice.
Sign Up to like & getrecommendations! 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,… read more here.
Keywords: spin ice; modal frustration; lattice; artificial spin ... See more keywords
Observation of Coherent Spin Waves in a Three-Dimensional Artificial Spin Ice Structure
Sign Up to like & getrecommendations! 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… read more here.
Keywords: three dimensional; spin waves; coherent spin; artificial spin ... See more keywords
Topological frustration of artificial spin ice
Sign Up to like & getrecommendations! 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… read more here.
Keywords: spin ice; topological frustration; artificial spin; frustration ... See more keywords
Artificial spin ice: A ratchet made of tiny magnets.
Sign Up to like & getrecommendations! 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. read more here.
Keywords: ice ratchet; spin ice; artificial spin; ratchet made ... See more keywords
Emergent dynamic chirality in a thermally driven artificial spin ratchet.
Sign Up to like & getrecommendations! Published in 2017 at "Nature materials"
DOI: 10.1038/nmat5007
Abstract: Modern nanofabrication techniques have opened the possibility to create novel functional materials, whose properties transcend those of their constituent elements. In particular, tuning the magnetostatic interactions in geometrically frustrated arrangements of nanoelements called artificial spin… read more here.
Keywords: emergent dynamic; chirality thermally; artificial spin; dynamic chirality ... See more keywords
Switchable geometric frustration in an artificial-spin-ice–superconductor heterosystem
Sign Up to like & getrecommendations! 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,… read more here.
Keywords: spin ice; artificial spin; geometric frustration;
Classical topological order in the kinetics of artificial spin ice
Sign Up to like & getrecommendations! Published in 2018 at "Nature Physics"
DOI: 10.1038/s41567-018-0077-0
Abstract: Systems of interacting nanomagnets known as artificial spin ice1–4 have allowed the design, realization and study of geometrically frustrated exotic collective states5–10 that are absent in natural magnets. We have experimentally measured11,12 the thermally induced… read more here.
Keywords: classical topological; artificial spin; geometry; spin ... See more keywords
Elevated effective dimension in tree-like nanomagnetic Cayley structures.
Sign Up to like & getrecommendations! Published in 2019 at "Nanoscale"
DOI: 10.1039/c9nr07510k
Abstract: Using state-of-the-art electron-beam lithography, Ising-type nanomagnets may be defined onto nearly any two-dimensional pattern imaginable. The ability to directly observe magnetic configurations achieved in such artificial spin systems makes them a perfect playground for the… read more here.
Keywords: effective dimension; cayley; tree; artificial spin ... See more keywords
Tuning magnetic ordering in a dipolar square-kite tessellation
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5014041
Abstract: The potential application of artificial spin ice in magnetic nanodevices provides a strong drive to investigate different lattice geometries. Here, we combine components of a recently investigated artificial spin ratchet with components of the prototypical… read more here.
Keywords: magnetic ordering; square kite; artificial spin; lattice ... See more keywords
Magnetization reversal and emergent magnetic monopole-like state in square artificial spin ice vertex with defects
Sign Up to like & getrecommendations! Published in 2018 at "AIP Advances"
DOI: 10.1063/1.5042803
Abstract: We have investigated the micro-magnetic behavior as well as magnetization reversal of dipolar coupled magnetic nanoislands with strong shape anisotropy arranged in a square artificial spin ice geometry. Our 0 K-temperature simulation results show that… read more here.
Keywords: state; square artificial; artificial spin; geometry ... See more keywords
Artificial spin ice: Paths forward
Sign Up to like & getrecommendations! Published in 2021 at "Applied Physics Letters"
DOI: 10.1063/5.0044790
Abstract: Artificial spin ice systems are lithographically prepared arrays of interacting nanoscale magnetic moments with collective behavior resulting from the chosen array geometry. These many-body systems are unusual in that their simple constituent elements can be… read more here.
Keywords: artificial spin; spin; paths forward; spin ice ... See more keywords