Husain, SajidHarris, IsaacMeisenheimer, PeterMantri, SukritiLi, XinyanRamesh, MayaBehera, PiushTaghinejad, HosseinKim, JaegyuKavle, PravinZhou, ShiyuKim, Tae YeonZhang, HongruiStevenson, PaulAnalytis, James G.Schlom, DarrellSalahuddin, SayeefÍñiguez-González, JorgeXu, BinMartin, Lane W.Caretta, LucasHan, YimoBellaiche, LaurentYao, ZhiRamesh, Ramamoorthy2024-08-222024-08-222024Husain, S., Harris, I., Meisenheimer, P., Mantri, S., Li, X., Ramesh, M., Behera, P., Taghinejad, H., Kim, J., Kavle, P., Zhou, S., Kim, T. Y., Zhang, H., Stevenson, P., Analytis, J. G., Schlom, D., Salahuddin, S., Íñiguez-González, J., Xu, B., … Ramesh, R. (2024). Non-volatile magnon transport in a single domain multiferroic. Nature Communications, 15(1), 5966. https://doi.org/10.1038/s41467-024-50180-9https://hdl.handle.net/1911/117704Antiferromagnets have attracted significant attention in the field of magnonics, as promising candidates for ultralow-energy carriers for information transfer for future computing. The role of crystalline orientation distribution on magnon transport has received very little attention. In multiferroics such as BiFeO3 the coupling between antiferromagnetic and polar order imposes yet another boundary condition on spin transport. Thus, understanding the fundamentals of spin transport in such systems requires a single domain, a single crystal. We show that through Lanthanum (La) substitution, a single ferroelectric domain can be engineered with a stable, single-variant spin cycloid, controllable by an electric field. The spin transport in such a single domain displays a strong anisotropy, arising from the underlying spin cycloid lattice. Our work shows a pathway to understanding the fundamental origins of magnon transport in such a single domain multiferroic.engExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.Journal articles41467-024-50180-9https://doi.org/10.1038/s41467-024-50180-9