Room-temperature helimagnetism in FeGe thin films
Chiral magnets are promising materials for the realisation of high-density and low-power spintronic memory devices. For these future applications, a key requirement is the synthesis of appropriate materials in the form of thin films ordering well above room temperature. Driven by the Dzyaloshinskii-...
| Main Authors: | , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Published: |
Nature Publishing Group
2017
|
| _version_ | 1826290428005056512 |
|---|---|
| author | Zhang, S Stasinopoulos, I Lancaster, T Xiao, F Bauer, A Rucker, F Baker, A Figueroa, A Salman, Z Pratt, F Blundell, S Prokscha, T Suter, A Waizner, J Garst, M Grundler, D van der Laan, G Pfleiderer, C Hesjedal, T |
| author_facet | Zhang, S Stasinopoulos, I Lancaster, T Xiao, F Bauer, A Rucker, F Baker, A Figueroa, A Salman, Z Pratt, F Blundell, S Prokscha, T Suter, A Waizner, J Garst, M Grundler, D van der Laan, G Pfleiderer, C Hesjedal, T |
| author_sort | Zhang, S |
| collection | OXFORD |
| description | Chiral magnets are promising materials for the realisation of high-density and low-power spintronic memory devices. For these future applications, a key requirement is the synthesis of appropriate materials in the form of thin films ordering well above room temperature. Driven by the Dzyaloshinskii-Moriya interaction, the cubic compound FeGe exhibits helimagnetism with a relatively high transition temperature of 278K in bulk crystals. We demonstrate that this temperature can be enhanced significantly in thin films. Using x-ray spectroscopic and ferromagnetic resonance techniques, we provide unambiguous experimental evidence for long-wavelength helimagnetic order at room temperature and magnetic properties similar to the bulk material. We obtain αintr = 0:0036 ± 0:0003 at 310K for the intrinsic damping parameter. We probe the dynamics of the system by means of muon-spin rotation, indicating that the ground state is reached via a freezing out of slow dynamics. Our work paves the way towards the fabrication of thin films of chiral magnets that host certain spin whirls, so-called skyrmions, at room temperature and potentially offer integrability into modern electronics. |
| first_indexed | 2024-03-07T02:44:02Z |
| format | Journal article |
| id | oxford-uuid:ab6dc4c2-4215-455e-a92c-08eb4b827252 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:44:02Z |
| publishDate | 2017 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | oxford-uuid:ab6dc4c2-4215-455e-a92c-08eb4b8272522022-03-27T03:21:54ZRoom-temperature helimagnetism in FeGe thin filmsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ab6dc4c2-4215-455e-a92c-08eb4b827252Symplectic Elements at OxfordNature Publishing Group2017Zhang, SStasinopoulos, ILancaster, TXiao, FBauer, ARucker, FBaker, AFigueroa, ASalman, ZPratt, FBlundell, SProkscha, TSuter, AWaizner, JGarst, MGrundler, Dvan der Laan, GPfleiderer, CHesjedal, TChiral magnets are promising materials for the realisation of high-density and low-power spintronic memory devices. For these future applications, a key requirement is the synthesis of appropriate materials in the form of thin films ordering well above room temperature. Driven by the Dzyaloshinskii-Moriya interaction, the cubic compound FeGe exhibits helimagnetism with a relatively high transition temperature of 278K in bulk crystals. We demonstrate that this temperature can be enhanced significantly in thin films. Using x-ray spectroscopic and ferromagnetic resonance techniques, we provide unambiguous experimental evidence for long-wavelength helimagnetic order at room temperature and magnetic properties similar to the bulk material. We obtain αintr = 0:0036 ± 0:0003 at 310K for the intrinsic damping parameter. We probe the dynamics of the system by means of muon-spin rotation, indicating that the ground state is reached via a freezing out of slow dynamics. Our work paves the way towards the fabrication of thin films of chiral magnets that host certain spin whirls, so-called skyrmions, at room temperature and potentially offer integrability into modern electronics. |
| spellingShingle | Zhang, S Stasinopoulos, I Lancaster, T Xiao, F Bauer, A Rucker, F Baker, A Figueroa, A Salman, Z Pratt, F Blundell, S Prokscha, T Suter, A Waizner, J Garst, M Grundler, D van der Laan, G Pfleiderer, C Hesjedal, T Room-temperature helimagnetism in FeGe thin films |
| title | Room-temperature helimagnetism in FeGe thin films |
| title_full | Room-temperature helimagnetism in FeGe thin films |
| title_fullStr | Room-temperature helimagnetism in FeGe thin films |
| title_full_unstemmed | Room-temperature helimagnetism in FeGe thin films |
| title_short | Room-temperature helimagnetism in FeGe thin films |
| title_sort | room temperature helimagnetism in fege thin films |
| work_keys_str_mv | AT zhangs roomtemperaturehelimagnetisminfegethinfilms AT stasinopoulosi roomtemperaturehelimagnetisminfegethinfilms AT lancastert roomtemperaturehelimagnetisminfegethinfilms AT xiaof roomtemperaturehelimagnetisminfegethinfilms AT bauera roomtemperaturehelimagnetisminfegethinfilms AT ruckerf roomtemperaturehelimagnetisminfegethinfilms AT bakera roomtemperaturehelimagnetisminfegethinfilms AT figueroaa roomtemperaturehelimagnetisminfegethinfilms AT salmanz roomtemperaturehelimagnetisminfegethinfilms AT prattf roomtemperaturehelimagnetisminfegethinfilms AT blundells roomtemperaturehelimagnetisminfegethinfilms AT prokschat roomtemperaturehelimagnetisminfegethinfilms AT sutera roomtemperaturehelimagnetisminfegethinfilms AT waiznerj roomtemperaturehelimagnetisminfegethinfilms AT garstm roomtemperaturehelimagnetisminfegethinfilms AT grundlerd roomtemperaturehelimagnetisminfegethinfilms AT vanderlaang roomtemperaturehelimagnetisminfegethinfilms AT pfleidererc roomtemperaturehelimagnetisminfegethinfilms AT hesjedalt roomtemperaturehelimagnetisminfegethinfilms |