Understanding magnetotransport signatures in networks of connected permalloy nanowires

B. L. Le, J. Park, J. Sklenar, G. W. Chern, C. Nisoli, J. D. Watts, M. Manno, D. W. Rench, N. Samarth, C. Leighton, P. Schiffer

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The change in electrical resistance associated with the application of an external magnetic field is known as the magnetoresistance (MR). The measured MR is quite complex in the class of connected networks of single-domain ferromagnetic nanowires, known as "artificial spin ice," due to the geometrically induced collective behavior of the nanowire moments. We have conducted a thorough experimental study of the MR of a connected honeycomb artificial spin ice, and we present a simulation methodology for understanding the detailed behavior of this complex correlated magnetic system. Our results demonstrate that the behavior, even at low magnetic fields, can be well described only by including significant contributions from the vertices at which the legs meet, opening the door to new geometrically induced MR phenomena.

Original languageEnglish (US)
Article number060405
JournalPhysical Review B
Volume95
Issue number6
DOIs
StatePublished - Feb 9 2017

Fingerprint

Galvanomagnetic effects
Permalloys (trademark)
Magnetoresistance
Nanowires
nanowires
signatures
Ice
ice
Magnetic fields
electrical resistance
magnetic fields
Acoustic impedance
apexes
methodology
moments
simulation

How much support was provided by MRSEC?

  • Partial

Reporting period for MRSEC

  • Period 3

Cite this

Le, B. L., Park, J., Sklenar, J., Chern, G. W., Nisoli, C., Watts, J. D., ... Schiffer, P. (2017). Understanding magnetotransport signatures in networks of connected permalloy nanowires. Physical Review B, 95(6), [060405]. https://doi.org/10.1103/PhysRevB.95.060405

Understanding magnetotransport signatures in networks of connected permalloy nanowires. / Le, B. L.; Park, J.; Sklenar, J.; Chern, G. W.; Nisoli, C.; Watts, J. D.; Manno, M.; Rench, D. W.; Samarth, N.; Leighton, C.; Schiffer, P.

In: Physical Review B, Vol. 95, No. 6, 060405, 09.02.2017.

Research output: Contribution to journalArticle

Le, BL, Park, J, Sklenar, J, Chern, GW, Nisoli, C, Watts, JD, Manno, M, Rench, DW, Samarth, N, Leighton, C & Schiffer, P 2017, 'Understanding magnetotransport signatures in networks of connected permalloy nanowires', Physical Review B, vol. 95, no. 6, 060405. https://doi.org/10.1103/PhysRevB.95.060405
Le, B. L. ; Park, J. ; Sklenar, J. ; Chern, G. W. ; Nisoli, C. ; Watts, J. D. ; Manno, M. ; Rench, D. W. ; Samarth, N. ; Leighton, C. ; Schiffer, P. / Understanding magnetotransport signatures in networks of connected permalloy nanowires. In: Physical Review B. 2017 ; Vol. 95, No. 6.
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AU - Watts, J. D.

AU - Manno, M.

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