Details of the Researcher

PHOTO

Sud Aakanksha
Section
Frontier Research Institute for Interdisciplinary Sciences
Job title
Assistant Professor
e-Rad No.
81004679

Professional Memberships 3

  • Women in Science Japan (WISJ)

    2025/06 - Present

  • Panjab University Alumni Association ( PUAA)

    2014 - Present

  • JSAP, Japan Society for Applied Physics

Research Interests 1

  • Spin orbit torques, Magnonics, Spin waves, Surface acoustic waves, Spin Hall nano-oscillators

Research Areas 3

  • Natural sciences / Magnetism, superconductivity, and strongly correlated systems /

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Electric/electronic material engineering /

  • Nanotechnology/Materials / Nanomaterials / Spintronics

Papers 18

  1. Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers Peer-reviewed

    Takaaki Dohi, Mona Bhukta, Fabian Kammerbauer, Venkata Krishna Bharadwaj, Ricardo Zarzuela, Aakanksha Sud, Maria-Andromachi Syskaki, Duc Minh Tran, Thibaud Denneulin, Sebastian Wintz, Markus Weigand, Simone Finizio, Jörg Raabe, Robert Frömter, Rafal E. Dunin-Borkowski, Jairo Sinova, Mathias Kläui

    Nature Communications　16　(1)　2025/09/26

    Publisher: Springer Science and Business Media LLC

    DOI： 10.1038/s41467-025-63759-7 　

    eISSN： 2041-1723

    More details Close

    Abstract A hybrid chiral skyrmion tube is a well-known example of a 3D topological spin texture, exhibiting an intriguing chirality transition along the thickness direction. This transition progresses from left-handed to right-handed Néel-type chirality, passing through a Bloch-type intermediate state. Such an exotic spin configuration potentially exhibits distinctly different dynamics from that of the common skyrmion tube that exhibits a homogeneous chirality; yet these dynamics have not been ascertained so far. Here, we reveal the distinct features of current-induced dynamics that result from the hybrid chiral skyrmion tube structure in synthetic antiferromagnetic (SyAFM) multilayers. Strikingly, the SyAFM hybrid chiral skyrmion tubes exhibit a non-reciprocal skyrmion Hall effect in the flow regime. The non-reciprocity can even be tuned by the degree of magnetic compensation in the SyAFM systems. Our theoretical modeling qualitatively corroborates that the non-reciprocity stems from the dynamic oscillation of skyrmion helicity during its current-induced motion. The findings highlight the critical role of the internal degrees of freedom of these complex skyrmion tubes for their current-induced dynamics.

  2. Electrically Controlled Nonlinear Magnon-Magnon Coupling in a Synthetic Antiferromagnet Peer-reviewed

    A. Sud, K. Yamamoto, S. Iihama, K. Ishibashi, S. Fukami, H. Kurebayashi, S. Mizukami

    Physical Review Letters　134　(24)　2025/06/20

    Publisher: American Physical Society (APS)

    DOI： 10.1103/sc6y-rxbg 　

    ISSN： 0031-9007

    eISSN： 1079-7114

  3. Novel Magnetic Materials for Spintronic Device Technology

    A.Sud, A.Kumar,M. Cubucku

    2025/01

    DOI： 10.48550/arXiv.2501.19087 　

  4. Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers

    2024/11

  5. Spin-Glass States Generated in a van der Waals Magnet by Alkali-Ion Intercalation

    Safe Khan, Eva S.Y. Aw, Liam A.V. Nagle-Cocco, Aakanksha Sud, Sukanya Ghosh, Mohammed K.B. Subhan, Zekun Xue, Charlie Freeman, Dimitrios Sagkovits, Araceli Gutiérrez-Llorente, Ivan Verzhbitskiy, Daan M. Arroo, Christoph W. Zollitsch, Goki Eda, Elton J.G. Santos, Sian E. Dutton, Steven T. Bramwell, Chris A. Howard, Hidekazu Kurebayashi

    Advanced Materials　36　(36)　2024/09/05

    DOI： 10.1002/adma.202400270 　

    ISSN： 0935-9648

    eISSN： 1521-4095

  6. Effect of multilayering and crystal orientation on spin-orbit torque efficiency in Ni/Pt layer stacking

    A. Sud, Y. C. Lau, J. Brierley, H. Kurebayashi, T. Seki

    Physical Review Materials　7　(12)　2023/12

    DOI： 10.1103/PhysRevMaterials.7.124410 　

    eISSN： 2475-9953

  7. Magnon-magnon coupling in synthetic ferrimagnets

    A. Sud, K. Yamamoto, K. Z. Suzuki, S. Mizukami, H. Kurebayashi

    Physical Review B　108　(10)　2023/09/01

    DOI： 10.1103/PhysRevB.108.104407 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  8. Tailoring interfacial effect in multilayers with Dzyaloshinskii–Moriya interaction by helium ion irradiation

    A. Sud, S. Tacchi, D. Sagkovits, C. Barton, M. Sall, L. H. Diez, E. Stylianidis, N. Smith, L. Wright, S. Zhang, X. Zhang, D. Ravelosona, G. Carlotti, H. Kurebayashi, O. Kazakova, M. Cubukcu

    Scientific Reports　11　(1)　2021/12

    DOI： 10.1038/s41598-021-02902-y 　

    eISSN： 2045-2322

  9. Parity-controlled spin-wave excitations in synthetic antiferromagnets

    A. Sud, Y. Koike, S. Iihama, C. Zollitsch, S. Mizukami, H. Kurebayashi

    Applied Physics Letters　118　(3)　2021/01/18

    DOI： 10.1063/5.0037427 　

    ISSN： 0003-6951

  10. Growth, strain, and spin-orbit torques in epitaxial Ni-Mn-Sb films sputtered on GaAs

    N. Zhao, A. Sud, H. Sukegawa, S. Komori, K. Rogdakis, K. Yamanoi, J. Patchett, J. W.A. Robinson, C. Ciccarelli, H. Kurebayashi

    Physical Review Materials　5　(1)　2021/01

    DOI： 10.1103/PhysRevMaterials.5.014413 　

    eISSN： 2475-9953

  11. Anomalous Effect of Quantum Interference in Organic Spin Filters

    Ashima Bajaj, Prabhleen Kaur, Aakanksha Sud, Marco Berritta, Md Ehesan Ali

    Journal of Physical Chemistry C　124　(44)　24361-24371　2020/11/05

    DOI： 10.1021/acs.jpcc.0c08199 　

    ISSN： 1932-7447

    eISSN： 1932-7455

  12. Tunable magnon-magnon coupling in synthetic antiferromagnets

    A. Sud, C. W. Zollitsch, A. Kamimaki, T. Dion, S. Khan, S. Iihama, S. Mizukami, H. Kurebayashi

    Physical Review B　102　(10)　2020/09

    DOI： 10.1103/PhysRevB.102.100403 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  13. Linear piezoresistive strain sensor based on graphene/g-C<inf>3</inf>N<inf>4</inf>/PDMS heterostructure

    Sk Riyajuddin, Sushil Kumar, Surender P. Gaur, Aakanksha Sud, Takahiro Maruyama, Md Ehesan Ali, Kaushik Ghosh

    Nanotechnology　31　(29)　2020/05/01

    DOI： 10.1088/1361-6528/ab7b88 　

    ISSN： 0957-4484

    eISSN： 1361-6528

  14. Spin dynamics study in layered van der Waals single-crystal Cr2Ge2Te6

    S. Khan, C. W. Zollitsch, D. M. Arroo, H. Cheng, I. Verzhbitskiy, A. Sud, Y. P. Feng, G. Eda, H. Kurebayashi

    Physical Review B　100　(13)　2019/10/30

    DOI： 10.1103/PhysRevB.100.134437 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  15. Spin dynamics study in layered van der Waals single-crystal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Cr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Ge</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Te</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math> Peer-reviewed

    S. Khan, C. W. Zollitsch, D. M. Arroo, H. Cheng, I. Verzhbitskiy, A. Sud, Y. P. Feng, G. Eda, H. Kurebayashi

    Physical Review B　100　(13)　2019/10/30

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevb.100.134437 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  16. Spin transport parameters of NbN thin films characterized by spin pumping experiments

    K. Rogdakis, A. Sud, M. Amado, C. M. Lee, L. McKenzie-Sell, K. R. Jeon, M. Cubukcu, M. G. Blamire, J. W.A. Robinson, L. F. Cohen, H. Kurebayashi

    Physical Review Materials　3　(1)　2019/01/14

    DOI： 10.1103/PhysRevMaterials.3.014406 　

    eISSN： 2475-9953

  17. Study of optical properties of ZnS thin film using simulation software

    A. Sud, R. Kumar

    Int. J. App Nat. Sci　5　13-18　2016

  18. Investigation of optoelectronic properties of Zns and silver doped Zns using density functional theory

    A. Sud, R. Kumar

    3　198-202　2016

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Books and Other Publications 2

  1. Quantum Magnonic Materials: Coherent Spin Excitations for Next-Generation Spintronics, accepted for publication in Engineering Materials to be published in Springer Nature, 2025

    A. Sud, D. Bossini

    2025

  2. "Novel Magnetic Materials for Spintronic Device Technology" has been accepted for inclusion in the upcoming book "Advances in Emerging Materials in Electronics, Energy, and Biotechnology: Fabrication, Characterization, and Applications,"

    to be published by Taylor and Francis CRC Press. (2025)　2025

Presentations 30

  1. Physical Reservoir Computing with Spin Hall Nano-Oscillators: Harnessing Transient Dynamics for Neuromorphic Applications

    13th early career Ensemble workshop　2024/12/11

  2. Physical Reservoir Computing with Spin Hall Nano-Oscillators: Harnessing Transient Dynamics for Neuromorphic Applications

    2024/11

  3. Electrically controlled Non-linear Magnon-magnon coupling in synthetic antiferromagnet

    Aakanksha Sud

    WE-Heraeus-Seminar, Physikzentrum, Bad Honnef, Germany　2024/10

  4. Reservoir Computing Using Spin-Hall Nano-Oscillator with various Dynamic states Invited

    Aakanksha Sud

    Nano-spin Research Exchange meeting　2024/10/02

  5. Reservoir Computing Utilizing Transient Dynamics of Spin-Hall Nano-Oscillators

    Aakanksha Sud

    JSAP, Autumn meeting　2024/09/16

  6. Electrical control of nonlinear coupling between magnon modes in synthetic antiferromagnetic thin films Invited

    Aakanksha Sud

    12th Early Career Researchers Ensemble Workshop, Tohoku University　2024/05/20

  7. Spin pumping driven by nonlinear harmonic generation

    Aakanksha Sud

    TSQS, 2024 Tokyo　2024/02

  8. Nonlinear coupling mediated by multi-magnon interactions in synthetic antiferromagnetic thin films Invited

    Women in Nanofabrication, EIPBN 2024　2024

  9. JSPS Science Dialogue Invited

    Aakanksha Sud

    2023/11/29

  10. Magnon-magnon coupling induced by symmetry breaking in synthetic ferrimagnetic multi-layers

    JSAP,2023　2023

  11. Nonlinear coupling mediated in synthetic antiferromagnetic thin films

    JSAP,2023　2023

  12. Magnon-magnon coupling in Synthetic antiferromagnets

    Magic2021, Poland　2021

  13. Parity Controlled spin-wave excitations in synthetic antiferromagnets

    IoP Magnetism Conference　2021

  14. Mode coupling and spin-wave dissipaton in synthetic antiferromagnetic multi-layers

    IoP Magnetism Conference　2021

  15. Modulation of magnon-magnon coupling by inherent symmetry breaking in synthetic antiferromagnets

    INTERMAG　2021

  16. Parity Controlled spin-wave excitations in synthetic antiferromagnet

    INTERMAG　2021

  17. Spin orbit torques in NiMnSb

    N. Zhao, A. Sud

    2019/05

  18. Anisotropic Damping of Magnetisation Dynamics in Non-Centrosymmetric Ferromagnet

    IoP Magnetism Conference, Leeds　2019

  19. Gilbert damping anisotropy in NiMnSb

    Mildner Lecture, UCL 2019　2019

  20. Spin Dynamics of current magnetization interaction in NbN/YIG bilayers: Phenomena of Spin Pumping induced Inverse spin-Hall effect

    Mildner Lecture, UCL　2018

  21. Organic Spin-filters

    A. Sud

    INST symposium　2017

  22. Recent Advances in Heterojunction Solar Cells

    A. Sud

    HETIS 2nd International conference　2016

  23. Chiral Magnon-Phonon Coupling in Synthetic Antiferromagnets: Tunable Nonreciprocal Energy Transport and Mode Selectivity.

    A. Sud

    FRIS -Zenryoki seminar,　2025/06

  24. Chiral Magnon-Phonon Coupling in Synthetic Antiferromagnets.

    A. Sud, J. Puebla, A. Onoda, S. Fukami

    14th Early Career Researchers Ensemble Workshop, Tohoku,

  25. Chiral Coupling Between Magnons and Phonons

    A. Sud

    DIARE Workshop　2025/02

  26. Magnon-phonon coupling

    A. Sud

    TI-FRIS workshop, Tohoku, February 2025. ( Poster presentation)　2025/02

  27. Physical Reservoir Computing Using Spin Hall Nano-Oscillators: Harnessing Multi-Mode Dynamics for Neuromorphic Applications

    A. Sud, A. Kumar, M. Khademi, J. Akerman, S. Fukami

    RIEC international Symposium, Tohoku, 2025　2025/02

  28. Tailoring interfacial effect in thin films with DMI by He irradiation

    A Sud, S Tacchi, D Sagkovits, C Barton, M Sall, L Herrera Diez, E Stylianidis, N Smith, L Wrigh, S Zhang, Xixiang Zhang, D Ravelosona, G Carlotti, H Kurebayashi, O Kazakova, M Cubukcu

    2021

  29. Magnetisation dynamics in bulk 2D van der Waals layered ferromagnet, Cr2Ge2Te6

    S Khan, C Zollitsch, A Sud, D Arroo, H Cheng, I Verzhbitski, Y Feng, G Eda, H Kurebayashi

    Magnetism 2019

  30. Spin pumping and spin transport in NbN/YIG structures

    K Rogdakis, A Sud, M Amado, C M Lee, J W A Robinson, M G Blamire, L F Cohen, H Kurebayashi

    2018

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Research Projects 9

  1. 学際研究共創プログラム（Creative Interdisciplinary Collaboration Program）

    Aakanksha Sud, Chao Tang, Katarzyna Gas, Maciej Sawicki

    2025/06 - 2027/06

  2. Magnons in Motion: Unraveling the Interaction Between Domain Structures and Spin Dynamics in Synthetic Antiferromagnets

    Aakanksha Sud, Takuya Taniguchi

    Offer Organization: Ensemble Grants for Early Career Researchers 2025

    System: Ensemble Grants for Early Career Researchers 2025

    2025/06 - 2026/05

  3. 2024/25 Tohoku University-University College London Matching Fund

    Offer Organization: 2025 Tohoku University-University College London Matching Fund

    2025/04 - 2026/04

  4. 学部学生研究ワーク体験（FRIS URO）

    Aakanksha Sud

    System: 学部学生研究ワーク体験（FRIS URO）

    2024/11 - 2025/03

  5. Magnetization dynamics in synthetic antiferromagnets for memory application

    Offer Organization: Japan Society for the Promotion of Science

    System: Grants-in-Aid for Scientific Research

    Category: Grant-in-Aid for JSPS Fellows

    Institution: Tohoku University

    2023/03 - 2024/03

  6. Spin orbit torques in magnetic multilayers

    Aakanksha Sud

    Offer Organization: Engineering and Physical sciences research council, UKRI( EPSRC-DTP UKRI)

    2017 - 2021

  7. UCL-Tohoku Seed grant

    2020/02 - 2020/03

  8. Junior research fellowship- Organic spintronics

    Offer Organization: Department of science and technology, India

    System: Department of science and technology, India

    2016/08 - 2017/08

  9. JRF Travel grant

    Offer Organization: Department of science and technology, India

    System: Department of science and technology, India

    Institution: Department of science and technology, India

    2016/12 - 2016/12

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Teaching Experience 1

  1. Teaching Assistant , Analog and Digital electronics　University College London

Academic Activities 1

  1. SpinX 2024 : Harnessing Spintronics for Tomorrow's Technology

    2024/09/09 - 2024/12/11

    Activity type: Academic society, research group, etc.