Weichao and Jin had their second joint paper on spin wave fiber, published on Physical Review B (Rapid Communications) [link]. In the paper, we continued our pursuit of novel spin wave devices. In this case, we propsoed a spin wave fiber that can transmit spin waves via total reflections at magnetic domain walls (see below), mimicing the optical fiber.
Magnonics is promising for the next generation energy-saving information technology and hence attracted increasing attention of broad researchers in recent years. The aim of magnonics is to achieve unified information storage and processing using magnons, or spin waves, which are collective quasi-particle excitations of the magnetic moments and can propagate without much energy dissipation. Quite many magnonic structures have been proposed and studied in all sorts of designs, however, a unified and scalable magnonic platform is still lacking.
This work was a collaboration with Dr. Jin Lan, Mr. Weicaho Yu, and Prof. Ruqian Wu of our department. Mr. Weichao Yu and Dr. Jin Lan share equal contribution to this work.