Dependence of interfacial Dzyaloshinskii-Moriya interaction and perpendicular magnetic anisotropy on the thickness of the heavy-metal layer

Autor: June-Seo Kim, NH Nam Kim, J Jung, Dong-Soo Han, Kwonjin Park, Chun-Yeol You, Hjm Henk Swagten

Publikováno v: Applied Physics Express, 10(10):103003, 1-5. Japan Society of Applied Physics

The interfacial Dzyaloshinskii-Moriya interaction (iDMI) and the interfacial perpendicular magnetic anisotropy (iPMA) between a heavy metal and ferromagnet are investigated by employing Brillouin light scattering. With increasing thickness of the hea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6070f72fe612409a35d647322cc85b96
https://doi.org/10.7567/APEX.10.103003

The sign of the interfacial Dzyaloshinskii-Moriya interaction in ultrathin amorphous and polycrystalline magnetic films

Autor: Seung Ku Kang, Jaehun Cho, Chun-Yeol You, Hee Kyeong Hwang, Jinyoung Jung, NH Nam Kim, Hjm Henk Swagten, June-Seo Kim

Publikováno v: Journal of Physics D: Applied Physics, 50(42):425004, 1-6. Institute of Physics

We investigate the sign of the interfacial Dzyaloshinskii-Moriya interaction (iDMI) energy density in system with inversion symmetry breaking for amorphous and polycrystalline ferromagnetic layers (CoFeB, Co) sandwiched by two different or the same h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec6377ab8f355030d92c016cffb40440
https://research.tue.nl/nl/publications/cf7384de-a52c-47f9-84d4-ae606940b539

Chiral magnetoresistance in Pt/Co/Pt zigzag wires

Autor: Seo Won Lee, B Bert Koopmans, Y Yuxiang Yin, Dong-Soo Han, Kyung Jin Lee, June-Seo Kim, Hyun-Woo Lee, Hjm Henk Swagten, Reinoud Lavrijsen, Kyoung-Whan Kim

Publikováno v: Applied Physics Letters, 110(12):122401, 1-5. American Institute of Physics

The Rashba effect leads to a chiral precession of the spins of moving electrons, while the Dzyaloshinskii-Moriya interaction (DMI) generates preference towards a chiral profile of local spins. We predict that the exchange interaction between these tw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ede5a7488bee2509b2aeaa4ef148685
https://research.tue.nl/nl/publications/e9712bae-58e7-4950-a3a9-751ac54577dc

Beam-induced Fe nanopillars as tunable domain-wall pinning sites

Autor: B Bert Koopmans, TH Tim Ellis, Maj Mark van der Heijden, Hjm Henk Swagten, Damien McGrouther, Reinoud Lavrijsen, C Carsten Daniels, JH Jeroen Franken

Publikováno v: Advanced Functional Materials, 24(23), 3508-3514. Wiley-VCH Verlag

Focused-electron-beam-induced deposition (FEBID) is employed to create freestanding magnetic nanostructures. By growing Fe nanopillars on top of a perpendicular magnetic domain wall (DW) conduit, pinning of the DWs is observed due to the stray fields

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a79be4f7664cf0c433a1fed9040f7916
https://research.tue.nl/en/publications/759593f8-5015-4e3a-a831-27296561cfbe

Field-free magnetization reversal by spin-Hall effect and exchange bias

Autor: van den A Arno Brink, B Bert Koopmans, Amp Aurelie Solignac, Hjm Henk Swagten, G Guus Vermijs, JT Jürgen Kohlhepp, J Jungwoo Koo

Publikováno v: Nature Communications
Nature Communications, 2016, 7, pp.10854. ⟨10.1038/ncomms10854⟩
Nature Communications, Nature Publishing Group, 2016, 7, pp.10854. ⟨10.1038/ncomms10854⟩
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Nature Communications, 7:10854, 1-6. Nature Publishing Group

As the first magnetic random access memories are finding their way onto the market, an important issue remains to be solved: the current density required to write magnetic bits becomes prohibitively high as bit dimensions are reduced. Recently, spin�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b31fffd32d11dff58c4f9cf862264c27
http://europepmc.org/articles/PMC5411711