Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films
| Autor: | Schreiber, Felix, Baldrati, Lorenzo, Schmitt, Christin, Ramos, Rafael, Saitoh, Eiji, Lebrun, Romain, Kläui, Mathias |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Appl. Phys. Lett. 117, 082401 (2020) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1063/5.0011852 |
| Popis: | We demonstrate stable and reversible current induced switching of large-area ($> 100\;\mu m^2$) antiferromagnetic domains in NiO/Pt by performing concurrent transport and magneto-optical imaging measurements in an adapted Kerr microscope. By correlating the magnetic images of the antiferromagnetic domain changes and magneto-transport signal response in these current-induced switching experiments, we disentangle magnetic and non-magnetic contributions to the transport signal. Our table-top approach establishes a robust procedure to subtract the non-magnetic contributions in the transport signal and extract the spin-Hall magnetoresistance response associated with the switching of the antiferromagnetic domains enabling one to deduce details of the antiferromagnetic switching from simple transport measurements. Comment: 12+2 pages, 3+2 figures, V2: Corrected equation for R_transv calculation, results unaffected |
| Databáze: | arXiv |
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