Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets

Hyeon Jong Park; Hye Won Ko; Gyungchoon Go; Jung Hyun Oh; Kyoung Whan Kim; Kyung Jin Lee

doi:10.1109/INTERMAGShortPapers58606.2023.10228380

Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets

Hyeon Jong Park, Hye Won Ko, Gyungchoon Go, Jung Hyun Oh, Kyoung Whan Kim, Kyung Jin Lee

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We show the spin swapping effect originated from band structure in centrosymmetric ferromagnets. Without breaking inversion symmetry or introducing spin-orbit impurities, the effect is attributed to anticrossings at which bands with different spin and different orbital are nearly degenerate, and thus has no analogue in nonmagnets. First-principle calculations for centrosymmetric 3d transition metal ferromagnets support the analysis based on analytic and tight-binding models and demonstrate the sizable spin swapping conductivity of band origin ∼ 2500 (h/e)(Ωcm)^-1. Our theory generalizes the understanding on the transverse spin currents of ferromagnets and highlights the role of orbital degree of freedom in spin-orbit-coupled transport.

Original language	English
Title of host publication	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9798350338362
DOIs	https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10228380
Publication status	Published - 2023
Event	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Sendai, Japan Duration: 2023 May 15 → 2023 May 19

Publication series

Name	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings

Conference

Conference	2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023
Country/Territory	Japan
City	Sendai
Period	23/5/15 → 23/5/19

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Mechanical Engineering
Electronic, Optical and Magnetic Materials
Instrumentation

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10.1109/INTERMAGShortPapers58606.2023.10228380

Cite this

Park, H. J., Ko, H. W., Go, G., Oh, J. H., Kim, K. W., & Lee, K. J. (2023). Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets. In 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10228380

Park, Hyeon Jong ; Ko, Hye Won ; Go, Gyungchoon et al. / Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets. 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings).

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title = "Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets",

abstract = "We show the spin swapping effect originated from band structure in centrosymmetric ferromagnets. Without breaking inversion symmetry or introducing spin-orbit impurities, the effect is attributed to anticrossings at which bands with different spin and different orbital are nearly degenerate, and thus has no analogue in nonmagnets. First-principle calculations for centrosymmetric 3d transition metal ferromagnets support the analysis based on analytic and tight-binding models and demonstrate the sizable spin swapping conductivity of band origin ∼ 2500 (h/e)(Ωcm)-1. Our theory generalizes the understanding on the transverse spin currents of ferromagnets and highlights the role of orbital degree of freedom in spin-orbit-coupled transport.",

keywords = "Spin Hall effect, Spin current, Spin-orbit coupling",

author = "Park, {Hyeon Jong} and Ko, {Hye Won} and Gyungchoon Go and Oh, {Jung Hyun} and Kim, {Kyoung Whan} and Lee, {Kyung Jin}",

note = "Publisher Copyright: {\textcopyright} 2023 IEEE.; 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 ; Conference date: 15-05-2023 Through 19-05-2023",

year = "2023",

doi = "10.1109/INTERMAGShortPapers58606.2023.10228380",

language = "English",

series = "2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings",

address = "United States",

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Park, HJ, Ko, HW, Go, G, Oh, JH, Kim, KW & Lee, KJ 2023, Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets. in 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings, Institute of Electrical and Electronics Engineers Inc., 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023, Sendai, Japan, 23/5/15. https://doi.org/10.1109/INTERMAGShortPapers58606.2023.10228380

Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets. / Park, Hyeon Jong; Ko, Hye Won; Go, Gyungchoon et al.
2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2023. (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets

AU - Park, Hyeon Jong

AU - Ko, Hye Won

AU - Go, Gyungchoon

AU - Oh, Jung Hyun

AU - Kim, Kyoung Whan

AU - Lee, Kyung Jin

PY - 2023

Y1 - 2023

N2 - We show the spin swapping effect originated from band structure in centrosymmetric ferromagnets. Without breaking inversion symmetry or introducing spin-orbit impurities, the effect is attributed to anticrossings at which bands with different spin and different orbital are nearly degenerate, and thus has no analogue in nonmagnets. First-principle calculations for centrosymmetric 3d transition metal ferromagnets support the analysis based on analytic and tight-binding models and demonstrate the sizable spin swapping conductivity of band origin ∼ 2500 (h/e)(Ωcm)-1. Our theory generalizes the understanding on the transverse spin currents of ferromagnets and highlights the role of orbital degree of freedom in spin-orbit-coupled transport.

AB - We show the spin swapping effect originated from band structure in centrosymmetric ferromagnets. Without breaking inversion symmetry or introducing spin-orbit impurities, the effect is attributed to anticrossings at which bands with different spin and different orbital are nearly degenerate, and thus has no analogue in nonmagnets. First-principle calculations for centrosymmetric 3d transition metal ferromagnets support the analysis based on analytic and tight-binding models and demonstrate the sizable spin swapping conductivity of band origin ∼ 2500 (h/e)(Ωcm)-1. Our theory generalizes the understanding on the transverse spin currents of ferromagnets and highlights the role of orbital degree of freedom in spin-orbit-coupled transport.

KW - Spin Hall effect

KW - Spin current

KW - Spin-orbit coupling

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Park HJ, Ko HW, Go G, Oh JH, Kim KW, Lee KJ. Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets. In 2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2023. (2023 IEEE International Magnetic Conference - Short Papers, INTERMAG Short Papers 2023 - Proceedings). doi: 10.1109/INTERMAGShortPapers58606.2023.10228380

Spin Swapping Effect of Band Structure Origin in Centrosymmetric Ferromagnets

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