Abstract

Copper-permalloy [Cu1−x(Ni80Fe20)x] alloy films were deposited by co-sputtering and their chemical, structural, magnetic, and electrical properties were characterized. These films are found to have favorable weak ferromagnetic properties for low temperature magnetoelectronic applications. Our results show that by varying the composition, the saturation magnetization (Ms) can be tuned from 700 emu/cm3 to 0 and the Curie temperature (Tc), can be adjusted from 900 K to 0 K. The Ms and Tc are found to scale linearly between x = 25% and 100%. Electronic structure calculations are used to provide a strong fundamental understanding of the mechanisms responsible for establishing the observed electrical and magnetic properties. The theoretical results also show that the introduction of Cu into the permalloy lattice results in very strong spin scattering in the minority spin channel, with only moderate interactions in the majority channel.

Original languageEnglish (US)
Pages (from-to)45-52
Number of pages8
JournalJournal of Magnetism and Magnetic Materials
Volume442
DOIs
StatePublished - Nov 15 2017

Fingerprint

Copper alloys
Permalloys (trademark)
Structural properties
Magnetic properties
Electric properties
electrical properties
magnetic properties
copper
Magnetoelectronics
Saturation magnetization
minorities
Curie temperature
chemical properties
Chemical properties
Electronic structure
Sputtering
Copper
sputtering
Scattering
electronic structure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

The magnetic, electrical and structural properties of copper-permalloy alloys. / Qader, Makram A.; Vishina, Alena; Yu, Lei; Garcia, Cougar; Singh, Rakesh; Rizzo, N. D.; Huang, Mengchu; Chamberlin, Ralph; Belashchenko, K. D.; van Schilfgaarde, Mark; Newman, Nathan.

In: Journal of Magnetism and Magnetic Materials, Vol. 442, 15.11.2017, p. 45-52.

Research output: Contribution to journalArticle

Qader, MA, Vishina, A, Yu, L, Garcia, C, Singh, R, Rizzo, ND, Huang, M, Chamberlin, R, Belashchenko, KD, van Schilfgaarde, M & Newman, N 2017, 'The magnetic, electrical and structural properties of copper-permalloy alloys', Journal of Magnetism and Magnetic Materials, vol. 442, pp. 45-52. https://doi.org/10.1016/j.jmmm.2017.06.081
Qader, Makram A. ; Vishina, Alena ; Yu, Lei ; Garcia, Cougar ; Singh, Rakesh ; Rizzo, N. D. ; Huang, Mengchu ; Chamberlin, Ralph ; Belashchenko, K. D. ; van Schilfgaarde, Mark ; Newman, Nathan. / The magnetic, electrical and structural properties of copper-permalloy alloys. In: Journal of Magnetism and Magnetic Materials. 2017 ; Vol. 442. pp. 45-52.
@article{db634d8678684e87b58bb5b0918c7e65,
title = "The magnetic, electrical and structural properties of copper-permalloy alloys",
abstract = "Copper-permalloy [Cu1−x(Ni80Fe20)x] alloy films were deposited by co-sputtering and their chemical, structural, magnetic, and electrical properties were characterized. These films are found to have favorable weak ferromagnetic properties for low temperature magnetoelectronic applications. Our results show that by varying the composition, the saturation magnetization (Ms) can be tuned from 700 emu/cm3 to 0 and the Curie temperature (Tc), can be adjusted from 900 K to 0 K. The Ms and Tc are found to scale linearly between x = 25{\%} and 100{\%}. Electronic structure calculations are used to provide a strong fundamental understanding of the mechanisms responsible for establishing the observed electrical and magnetic properties. The theoretical results also show that the introduction of Cu into the permalloy lattice results in very strong spin scattering in the minority spin channel, with only moderate interactions in the majority channel.",
author = "Qader, {Makram A.} and Alena Vishina and Lei Yu and Cougar Garcia and Rakesh Singh and Rizzo, {N. D.} and Mengchu Huang and Ralph Chamberlin and Belashchenko, {K. D.} and {van Schilfgaarde}, Mark and Nathan Newman",
year = "2017",
month = "11",
day = "15",
doi = "10.1016/j.jmmm.2017.06.081",
language = "English (US)",
volume = "442",
pages = "45--52",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",

}

TY - JOUR

T1 - The magnetic, electrical and structural properties of copper-permalloy alloys

AU - Qader, Makram A.

AU - Vishina, Alena

AU - Yu, Lei

AU - Garcia, Cougar

AU - Singh, Rakesh

AU - Rizzo, N. D.

AU - Huang, Mengchu

AU - Chamberlin, Ralph

AU - Belashchenko, K. D.

AU - van Schilfgaarde, Mark

AU - Newman, Nathan

PY - 2017/11/15

Y1 - 2017/11/15

N2 - Copper-permalloy [Cu1−x(Ni80Fe20)x] alloy films were deposited by co-sputtering and their chemical, structural, magnetic, and electrical properties were characterized. These films are found to have favorable weak ferromagnetic properties for low temperature magnetoelectronic applications. Our results show that by varying the composition, the saturation magnetization (Ms) can be tuned from 700 emu/cm3 to 0 and the Curie temperature (Tc), can be adjusted from 900 K to 0 K. The Ms and Tc are found to scale linearly between x = 25% and 100%. Electronic structure calculations are used to provide a strong fundamental understanding of the mechanisms responsible for establishing the observed electrical and magnetic properties. The theoretical results also show that the introduction of Cu into the permalloy lattice results in very strong spin scattering in the minority spin channel, with only moderate interactions in the majority channel.

AB - Copper-permalloy [Cu1−x(Ni80Fe20)x] alloy films were deposited by co-sputtering and their chemical, structural, magnetic, and electrical properties were characterized. These films are found to have favorable weak ferromagnetic properties for low temperature magnetoelectronic applications. Our results show that by varying the composition, the saturation magnetization (Ms) can be tuned from 700 emu/cm3 to 0 and the Curie temperature (Tc), can be adjusted from 900 K to 0 K. The Ms and Tc are found to scale linearly between x = 25% and 100%. Electronic structure calculations are used to provide a strong fundamental understanding of the mechanisms responsible for establishing the observed electrical and magnetic properties. The theoretical results also show that the introduction of Cu into the permalloy lattice results in very strong spin scattering in the minority spin channel, with only moderate interactions in the majority channel.

UR - http://www.scopus.com/inward/record.url?scp=85021068184&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85021068184&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2017.06.081

DO - 10.1016/j.jmmm.2017.06.081

M3 - Article

AN - SCOPUS:85021068184

VL - 442

SP - 45

EP - 52

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -