17 papers
Nonlinear Dynamics of Hopfion for Frequency Multiplication
Waleed I. Waseer, Yunshan Cao, Peng Yan
Hopfions, associated with higher-dimensional topology through the Hopf fibration, exhibit {exotic} features like {complex knot} and improved stability compared to skyrmions, enhanc…
Engineering nonlinear magnon scattering in artificial spin ice via vertex dipolar control
Waleed I. Waseer, Peng Yan
Artificial spin ice (ASI), composed of geometrically frustrated arrays of interacting nanoislands, provides a versatile platform for reprogrammable magnonic functionality. However,…
Oxidation-induced ultrafast spin-to-orbital conversion at heavy-metal interfaces
Xiaoxue Zeng, Tianyi Zhang, Yaokai Niu +6
Oxidation engineering provides a route to control orbital degrees of freedom, yet its role in spin-to-orbital conversion remains largely unexplored. Here, we report an efficient sp…
Arbitrary-genus dark soliton gases in the defocusing nonlinear Schrödinger hydrodynamics
Marco Bertola, Deng-Shan Wang, Peng Yan +1
The defocusing nonlinear Schrödinger hydrodynamics supports exact dark solitons under finite density boundary conditions. However, the dark soliton gas, an interacting ensemble of…
Spin Elasticity:A New Paradigm for Spintronics
Zhong-Chen Gao, Tianyi Zhang, Feifei Wang +3
Elasticity shapes our world. For centuries, it has been regarded as a property exclusive to ordinary matter. Here we uncover its hidden existence in the spin degree of freedom. We…
Spin Elasticity
Zhong-Chen Gao, Tianyi Zhang, Feifei Wang +3
Elasticity has long been regarded as a property exclusive to material media. Here we uncover its hidden existence in the spin degree of freedom. We introduce spin elasticity-an int…