Magnetically coupled nanomagnets have many possible applications including non-volatile memories, logic gates, and sensors. So far, the most effective couplings have been found to occur between the magnetic layers in vertically layered stacks. We have exploited the Dzyaloshinskii-Moriya interaction to control the lateral coupling between out-of-plane and in-plane non-homogeneous magnetic structures, and demonstrate unique phenomena associated with such chirally coupled nanomagnets . Based on this chiral coupling, we have utilized this concept for various purposes in the single-domain regime such as lateral exchange bias, field-free current-induced switching between multistate magnetic configurations, as well as synthetic lateral antiferromagnets, skyrmions, and artificial spin ices covering a broad range of length scales and topologies. We have also developed this concept for device applications in the combination with mobile domain-walls to realize chiral domain-wall injection  and domain-wall logic devices , which provides a viable platform for novel logic-in-memory architectures.
 Z. Luo, et al. Science 363, 1435 (2019).
 T.P. Dao, et al. Nano. Lett. 19, 5930 (2019).
 Z. Luo, et al. Nature 579, 214 (2020).
Brief CV of Dr. Zhaochu Luo:
Dr. Zhaochu Luo received his Bachelor’s degree in Materials Science and Engineering from Tsinghua University in 2012. Then he joined the Beijing National Center for Electron Microscopy at Tsinghua University as a PhD student. During his PhD, he mainly focused on spin-dependent transport phenomena and their applications in magnetic non-volatile logic. In 2017, Zhaochu received his PhD. He then joined the Laboratory for Mesoscopic Systems at ETH Zurich as a postdoctoral researcher in August 2017. Zhaochu’s current research interests include nanomagnetism, magnetoresistance phenomena in semiconductors, magnetic logic, and spin-based neuromorphic computing.
Contact: Shujuan Cui (崔书娟）
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