Ultrafast Demagnetization Governed by Spin Fluctuations in CaRuO${}_3$/SrTiO${}_3$ Superlattice

Yu-Han Gao, Wen-Xiao Shi, Yuan-Sha Chen +10

For ultrafast magnetization switching devices, critical slowing down in conventional ferromagnets near their Curie temperature constitutes a key challenge that must be overcome. In…