| Autor: |
Bhat, V. S., Heimbach, F., Stasinopoulos, I., Grundler, D. |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 93, 140401 (2016) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.93.140401 |
| Popis: |
We report broadband spin-wave spectroscopy on kagome artificial spin ice (ASI) made of large arrays of interconnected Ni$_{80}$Fe$_{20}$ nanobars. Spectra taken in saturated and disordered states exhibit a series of resonances with characteristic magnetic field dependencies. Making use of micromagnetic simulations, we identify resonances that reflect the spin-solid-state and monopole-antimonopole pairs on Dirac strings. The latter resonances allow for the generation of highly-charged vertices in ASIs via microwave assisted switching. Our findings open further perspectives for fundamental studies on ASIs and their usage in reprogrammable magnonics. |
| Databáze: |
arXiv |
| Externí odkaz: |
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