In this paper, to overcome the drawbacks of prior approaches for defending against Illegally-Copying (IC) attacks, such as low generality, high cost, and high overhead, we propose a Low-Cost ...

We have demonstrated ultrastrong magnon–magnon coupling in the gigahertz (GHz) band in a two–dimensional (2D) van der Waals (vdW) antiferromagnet, achieving a maximum normalized coupling strength of 0 ...