2017
DOI: 10.1103/physrevb.95.104417
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Dynamic dependence to domain wall propagation through artificial spin ice

Abstract: Domain wall propagation dynamics has been studied in nanostructured artificial kagome spin-ice structures. A stripline circuit has been used to provide localized pulsed magnetic fields within the artificial spin-ice (ASI) structure. This provides control of the system through electrically assisted domain wall nucleation events. Synchronization of the pulsed fields with additional global magnetic fields and the use of a focused magneto-optical Kerr effect magnetometer allows our experiments to probe the domain … Show more

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Cited by 10 publications
(9 citation statements)
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“…For these applications, it will be important to find a way to access the large number of macrospin configurations 84 . Furthermore, to be compatible with CMOS (complementary metal-oxide-semiconductor) technology, it will be important to develop methods to write data electrically in the form of the magnetic state of individual or collections of magnets utilizing, for example, spin-orbit torques 173 or spin-transfer torques, and to read out the states of individual magnets or an array of magnets with transport measurements 66,99,174 . The magnetic state of individual nanomagnets could be read out electrically via magnetic tunnel junctions, for instance.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…For these applications, it will be important to find a way to access the large number of macrospin configurations 84 . Furthermore, to be compatible with CMOS (complementary metal-oxide-semiconductor) technology, it will be important to develop methods to write data electrically in the form of the magnetic state of individual or collections of magnets utilizing, for example, spin-orbit torques 173 or spin-transfer torques, and to read out the states of individual magnets or an array of magnets with transport measurements 66,99,174 . The magnetic state of individual nanomagnets could be read out electrically via magnetic tunnel junctions, for instance.…”
Section: Discussionmentioning
confidence: 99%
“…Taking advantage of this asymmetry, a domain wall passing through tailored Y-junctions, which are the basic units of connected artificial kagome spin ice, can be used to perform logic operations 62,63 . However, care is needed because the walls may transform into domain walls of opposite chirality for particular magnetic fields and geometries 64,65 , and the propagation behaviour of the domain walls depends on the magnitude and orientation of the applied magnetic fields [66][67][68] . To circumvent these effects, the geometry of the Y-junctions can be modified so that the symmetry of the branches is reduced, giving a deterministic domain wall path that is independent of the domain-wall chirality 69 .…”
Section: Key Pointsmentioning
confidence: 99%
“…Here, the same control is achieved with a single set of lines, a reduction of n lines in an n-row array. The c-DW may be prepared electrically using previously described stripline-based schemes 44,52 .…”
Section: Resultsmentioning
confidence: 99%
“…In this context, a variety of geometries have been studied that exhibits more, less or different couplings between macrospins. Among these are asymmetric Ising-like systems with an as-grown ordering and emergent magnetic monopoles [315][316][317][318] , quasi-crystalline arrays with local transient states and frustration [319][320][321] , ordering in glass-like arrays 322 , the 'tetris', 'shakti', 'cairo', 'brickwork' or rewritable-square-ice lattice that exhibit reduced dimensionality, phase transitions, topological measures and local manipulability 268,278,311,[323][324][325][326][327][328] , arrays with an emergent chirality and artificial ferromagnetism [329][330][331] , implementations of artificial ferrimagnetism 332 , the presence of a phase coexistence described in relation to the Potts model 333,334 , 'anti'-spin-ice systems 335,336 , interaction-modified arrays 337,338 , interconnected variants 308,[339][340][341][342][343] or the coupling to additional functional layers 344 .…”
Section: Strongly Interacting Magnetic Arraysmentioning
confidence: 99%