Abstract
We investigate temperature, temporal and magnetic-field dependence of unidirectional magnetoresistance (UMR) in metallic bilayers. The UMR is found to decrease rapidly with reducing temperature and converges to a finite value at low-temperature limit. The temporal dependence shows that the UMR emerges in a nanosecond time scale, which depends on the current amplitude. The magnetic-field dependence shows that the UMR is almost constant up to 5 T. These experimental results imply that the high-energy magnons, which are not considered in existing theory, can be involved in the observed UMR. Our results therefore suggest that a more extended theory is required for the complete understanding of UMR.
Original language | English |
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Article number | 063001 |
Journal | Applied Physics Express |
Volume | 12 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2019 Jun 1 |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)