The Azimuthal Dependence of Exchange Bias Effect and its Analysis by Spin Glass Model in Ni0.8Fe0.2/CoxNi1−xO Bilayers

Autor: Woosuk Yoo, Seongmin Choo, Sinyong Jo, Chun-Yeol You, Jung-Il Hong, Kyujoon Lee, Myung-Hwa Jung

Publikováno v: IEEE Access, Vol 9, Pp 21315-21322 (2021)

Exchange bias (EB) effect has been vigorously researched for many years due to its possible applications in information storage and spintronics, especially in spin valves for magnetic recording devices. Even though many models have been expounded to

Externí odkaz: https://doaj.org/article/9852182e075c4b3f905c3854dcbf817a

Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2

Autor: Franziska Martin, Kyujoon Lee, Maurice Schmitt, Anna Liedtke, Aga Shahee, Haakon Thømt Simensen, Tanja Scholz, Tom G. Saunderson, Dongwook Go, Martin Gradhand, Yuriy Mokrousov, Thibaud Denneulin, András Kovács, Bettina Lotsch, Arne Brataas, Mathias Kläui

Publikováno v: Martin, F, Lee, K, Schmitt, M, Liedtke, A, Shahee, A, Simensen, H T, Scholz, T, Saunderson, T G, Go, D, Gradhand, M, Mokrousov, Y, Denneulin, T, Kovács, A, Lotsch, B, Brataas, A & Kläui, M 2022, ' Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2 ', Materials Research Letters, vol. 11, no. 1, pp. 84-80 . https://doi.org/10.1080/21663831.2022.2119108
Materials Research Letters 11(1), 84-89 (2023). doi:10.1080/21663831.2022.2119108

The recent emergence of magnetic van der Waals materials allows for the investigation of current induced magnetization manipulation in two dimensional materials. Uniquely, Fe3GeTe2 has a crystalline structure that allows for the presence of bulk spin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c28ec5d84da7788e66b1b949ae9a4460
https://research-information.bris.ac.uk/en/publications/72fb019a-ff55-4760-b803-a61be2e6b7a6

Role of top and bottom interfaces of a Pt/Co/AlOx system in Dzyaloshinskii-Moriya interaction, interface perpendicular magnetic anisotropy, and magneto-optical Kerr effect

Autor: Nam-Hui Kim, Jaehun Cho, Jinyong Jung, Dong-Soo Han, Yuxiang Yin, June-Seo Kim, Henk J. M. Swagten, Kyujoon Lee, Myung-Hwa Jung, Chun-Yeol You

Publikováno v: AIP Advances, Vol 7, Iss 3, Pp 035213-035213-9 (2017)

We investigate the role of top and bottom interfaces in inversion symmetry-breaking Pt/Co/AlOx systems by inserting ultra-thin Cu layers. Wedge-type ultrathin Cu layers (0-0.5 nm) are introduced between Pt/Co or Co/AlOx interfaces. Interface sensitiv

Externí odkaz: https://doaj.org/article/12463a938a6d40b18a46e57ac7dbabc7

Long-range chiral exchange interaction in synthetic antiferromagnets

Autor: Tae-Wan Kim, Dong-Soo Han, Henk J. M. Swagten, Woosuk Yoo, Kyoung-Whan Kim, Jan-Philipp Hanke, Reinoud Lavrijsen, Myung-Hwa Jung, Kyujoon Lee, Youri L. W. van Hees, Yuriy Mokrousov, Mathias Kläui, Chun-Yeol You

Publikováno v: Nature Materials, 18(7), 703-708. Nature Publishing Group
Nature materials 18, 703–708 (2019). doi:10.1038/s41563-019-0370-z

The exchange interaction governs static and dynamic magnetism. This fundamental interaction comes in two flavours-symmetric and antisymmetric. The symmetric interaction leads to ferro- and antiferromagnetism, and the antisymmetric interaction has att

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85904b623aca54d84f25ac6905f02ed6
https://doi.org/10.1038/s41563-019-0370-z

Chiral Magnetic Domain Wall and Skyrmion Memory Devices

Autor: Kyujoon Lee, Mathias Kläui, Dong-Soo Han

Publikováno v: Emerging Non-volatile Memory Technologies ISBN: 9789811569104

In the chapter, we have reviewed the fundamental physics for designing magnetic domain wall memories, especially domain wall racetrack memories. An overview of how the racetrack has been functionally improved and the fundamental physics behind the op

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c37a1584b9e6410e2f30f8e827bd4763
https://doi.org/10.1007/978-981-15-6912-8_5