Understanding magnetotransport signatures in networks of connected permalloy nanowires
- Univ. of Illinois, Urbana, IL (United States). Dept. of Physics. Frederick Seitz Materials Research Lab.
- Univ. of Virginia, Charlottesville, VA (United States). Dept. of Physics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Minnesota, Minneapolis, MN (United States). Dept. of Chemical Engineering and Materials Science
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Physics. Materials Research Inst.
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. Here, 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. Finally, 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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Illinois at Urbana-Champaign, IL (United States); Univ. of Minnesota, Minneapolis, MN (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- Grant/Contract Number:
- AC52-06NA25396; SC0010778; DMR-1420013; DMR-1507048
- OSTI ID:
- 1480009
- Alternate ID(s):
- OSTI ID: 1343335
- Report Number(s):
- LA-UR-18-29680
- Journal Information:
- Physical Review B, Vol. 95, Issue 6; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Emergent dynamic chirality in a thermally driven artificial spin ratchet
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journal | October 2017 |
Advances in artificial spin ice
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journal | November 2019 |
Magnetization dynamics in artificial spin ice
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journal | October 2019 |
Magnetization reversal in kagome artificial spin ice studied by first-order reversal curves
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journal | October 2017 |
Magnetization reversal in Kagome artificial spin ice studied by first-order reversal curves | text | January 2017 |
High frequency dynamics modulated by collective magnetization reversal in artificial spin ice | text | January 2017 |
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