Magnetic Damping Modulation in IrMn3/Ni80Fe20 via the Magnetic Spin Hall Effect

José Holanda; Hilal Saglam; Vedat Karakas; Zhizhi Zang; Yi Li; Ralu Divan; Yuzi Liu; Ozhan Ozatay; Valentine Novosad; John E. Pearson; Axel Hoffmann

doi:10.1103/PhysRevLett.124.087204

Magnetic Damping Modulation in IrMn3/Ni80Fe20 via the Magnetic Spin Hall Effect

José Holanda, Hilal Saglam, Vedat Karakas, Zhizhi Zang, Yi Li, Ralu Divan, Yuzi Liu, Ozhan Ozatay, Valentine Novosad, John E. Pearson, Axel Hoffmann

Research output: Contribution to journal › Article › peer-review

Abstract

Noncollinear antiferromagnets can have additional spin Hall effects due to the net chirality of their magnetic spin structure, which provides for more complex spin-transport phenomena compared to ordinary nonmagnetic materials. Here we investigated how ferromagnetic resonance of permalloy (Ni80Fe20) is modulated by spin Hall effects in adjacent epitaxial IrMn3 films. We observe a large dc modulation of the ferromagnetic resonance linewidth for currents applied along the [001] IrMn3 direction. This very strong angular dependence of spin-orbit torques from dc currents through the bilayers can be explained by the magnetic spin Hall effect where IrMn3 provides novel pathways for modulating magnetization dynamics electrically.

Original language	English (US)
Article number	087204
Journal	Physical review letters
Volume	124
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.124.087204
State	Published - Feb 27 2020

ASJC Scopus subject areas

Physics and Astronomy(all)

Online availability

10.1103/PhysRevLett.124.087204

Library availability

Discover UIUC Full Text

Cite this

@article{0b49eb7e03214ed6b04d9333eb38a2b2,

title = "Magnetic Damping Modulation in IrMn3/Ni80Fe20 via the Magnetic Spin Hall Effect",

abstract = "Noncollinear antiferromagnets can have additional spin Hall effects due to the net chirality of their magnetic spin structure, which provides for more complex spin-transport phenomena compared to ordinary nonmagnetic materials. Here we investigated how ferromagnetic resonance of permalloy (Ni80Fe20) is modulated by spin Hall effects in adjacent epitaxial IrMn3 films. We observe a large dc modulation of the ferromagnetic resonance linewidth for currents applied along the [001] IrMn3 direction. This very strong angular dependence of spin-orbit torques from dc currents through the bilayers can be explained by the magnetic spin Hall effect where IrMn3 provides novel pathways for modulating magnetization dynamics electrically.",

author = "Jos{\'e} Holanda and Hilal Saglam and Vedat Karakas and Zhizhi Zang and Yi Li and Ralu Divan and Yuzi Liu and Ozhan Ozatay and Valentine Novosad and Pearson, {John E.} and Axel Hoffmann",

note = "Publisher Copyright: {\textcopyright} 2020 American Physical Society.",

year = "2020",

month = feb,

day = "27",

doi = "10.1103/PhysRevLett.124.087204",

language = "English (US)",

volume = "124",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Magnetic Damping Modulation in IrMn3/Ni80Fe20 via the Magnetic Spin Hall Effect

AU - Holanda, José

AU - Saglam, Hilal

AU - Karakas, Vedat

AU - Zang, Zhizhi

AU - Li, Yi

AU - Divan, Ralu

AU - Liu, Yuzi

AU - Ozatay, Ozhan

AU - Novosad, Valentine

AU - Pearson, John E.

AU - Hoffmann, Axel

PY - 2020/2/27

Y1 - 2020/2/27

N2 - Noncollinear antiferromagnets can have additional spin Hall effects due to the net chirality of their magnetic spin structure, which provides for more complex spin-transport phenomena compared to ordinary nonmagnetic materials. Here we investigated how ferromagnetic resonance of permalloy (Ni80Fe20) is modulated by spin Hall effects in adjacent epitaxial IrMn3 films. We observe a large dc modulation of the ferromagnetic resonance linewidth for currents applied along the [001] IrMn3 direction. This very strong angular dependence of spin-orbit torques from dc currents through the bilayers can be explained by the magnetic spin Hall effect where IrMn3 provides novel pathways for modulating magnetization dynamics electrically.

AB - Noncollinear antiferromagnets can have additional spin Hall effects due to the net chirality of their magnetic spin structure, which provides for more complex spin-transport phenomena compared to ordinary nonmagnetic materials. Here we investigated how ferromagnetic resonance of permalloy (Ni80Fe20) is modulated by spin Hall effects in adjacent epitaxial IrMn3 films. We observe a large dc modulation of the ferromagnetic resonance linewidth for currents applied along the [001] IrMn3 direction. This very strong angular dependence of spin-orbit torques from dc currents through the bilayers can be explained by the magnetic spin Hall effect where IrMn3 provides novel pathways for modulating magnetization dynamics electrically.

UR - http://www.scopus.com/inward/record.url?scp=85081786687&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85081786687&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.124.087204

DO - 10.1103/PhysRevLett.124.087204

M3 - Article

C2 - 32167348

AN - SCOPUS:85081786687

VL - 124

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 8

M1 - 087204

ER -

Magnetic Damping Modulation in IrMn3/Ni80Fe20 via the Magnetic Spin Hall Effect

Abstract

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this