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Organic-based magnon spintronics
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DOI：10.1038/s41563-018-0035-3.png)
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Magnonics concepts utilize spin-wave quanta (magnons) for information transmission, processing and storage. To convert information carried by magnons into an electric signal promises compatibility of magnonic devices with conventional electronic devices, that is, magnon spintronics(1). Magnons in inorganic materials have been studied widely with respect to their generation(2,3), transport(4,5) and detection(6). In contrast, resonant spin waves in the room-temperature organic-based ferrimagnet vanadium tetracyanoethylene (V(TCNE)(x) (x approximate to 2)), were detected only recently(7). Herein we report room-temperature coherent magnon generation, transport and detection in films and devices based on V(TCNE)(x) using three different techniques, which include broadband ferromagnetic resonance (FMR), Brillouin light scattering (BLS) and spin pumping into a Pt adjacent layer. V(TCNE)(x) can be grown as neat films on a large variety of substrates, and it exhibits extremely low Gilbert damping comparable to that in yttrium iron garnet. Our studies establish an alternative use for organic-based magnets, which, because of their synthetic versatility, may substantially enrich the field of magnon spintronics.
Keyword:
ROOM-TEMPERATURE
SPIN CURRENT
TRANSPORT
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Thin-film encapsulation of the air-sensitive organic-based ferrimagnet vanadium tetracyanoethylene
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分享收藏分享收藏Ferrimagnetic resonance in films of vanadium [tetracyanoethanide]x, grown by chemical vapor deposition -: art. no. 064411.png)
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