Observation and control of hybrid spin-wave-Meissner-current transport modes
成果类型：
Article
署名作者：
Borst, M.; Vree, P. H.; Lowther, A.; Teepe, A.; Kurdi, S.; Bertelli, I.; Simon, B. G.; Blanter, Y. M.; van der Sar, T.
署名单位：
Delft University of Technology
刊物名称：
SCIENCE
ISSN/ISSBN：
0036-8808
DOI：
10.1126/science.adj7576
发表日期：
2023-10-27
页码：
430-434
关键词：
摘要：
Superconductors are materials with zero electrical resistivity and the ability to expel magnetic fields, which is known as the Meissner effect. Their dissipationless diamagnetic response is central to magnetic levitation and circuits such as quantum interference devices. In this work, we used superconducting diamagnetism to shape the magnetic environment governing the transport of spin waves-collective spin excitations in magnets that are promising on-chip signal carriers-in a thin-film magnet. Using diamond-based magnetic imaging, we observed hybridized spin-wave-Meissner-current transport modes with strongly altered, temperature-tunable wavelengths and then demonstrated local control of spin-wave refraction using a focused laser. Our results demonstrate the versatility of superconductor-manipulated spin-wave transport and have potential applications in spin-wave gratings, filters, crystals, and cavities.