Cascadable direct current driven skyrmion logic inverter gate
| Autor: | Mousavi Cheghabouri, Arash, Katmis, Ferhat, Onbasli, Mehmet C. |
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| Přispěvatelé: | Onbaşlı, Mehmet Cengiz (ORCID 0000-0002-3554-7810 & YÖK ID 258783), Cheghabouri, Arash Mousavi, Katmış, Ferhat, College of Engineering, Graduate School of Sciences and Engineering, Department of Electrical and Electronics Engineering |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physical Review B |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.105.054411 |
| Popis: | Nanoscale skyrmions enable ultralow-power nonvolatile logic gate designs due to their current-driven motion and topological protection. A key building block in skyrmion-based digital spintronics is the logic inverter (NOT) gate. Despite recent computational and practical demonstrations, a skyrmion-based low-power, wideband, and cascadable inverter gate is still a long way off. For skyrmion-based logic circuits, a systematic design and analysis of an inverter gate is essential. Here we present a skyrmion logic inverter design and analyze its full operation using micromagnetic modeling. Because of the substrate thermal conductivity, our investigations reveal that the all-metallic inverter gate can function with direct current drive, wide bandwidth, submicron footprint, no or low external magnetic field, cascadability, and with room-temperature thermal stability despite Joule heating. Using magnetic insulators for eliminating Joule heating and lowering the exchange stiffness, magnetic moment and other factors might further assist in reducing power consumption by more than four orders of magnitude. Scientific and Technological Research Council of Turkey (TÜBİTAK); European Union (EU); Horizon 2020; European Research Council (ERC) Starting Grant; SKYNOLIMIT; Turkish Academy of National Sciences TÜBA-GEBİP Award; Huawei Fellowship |
| Databáze: | OpenAIRE |
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