The nonlinear susceptibility is a measure of a material's nonlinear response to an applied electric field. It determines the strength of the nonlinear effects and is related to the crystal's symmetry ...
Nonlinear differential equations describe the dynamics of systems in fields as diverse as physics, engineering, chemistry, biology, economics, and weather and climate science 1. Turbulence, ...
Magnons are quantized collective spin-wave excitations in magnetically ordered materials. Revealing the interactions among these collective modes is crucial for the understanding of fundamental ...