Author:
Zhang Z.-Y.,Sekiguchi F.,Moriyama T.,Satoh T.,Mukai Y.,Tanaka K.,Yamamoto T.,Kageyama H.,Kanemitsu Y.,Hirori H.
Abstract
We observed a large spin-precession amplitude that generates the second and third harmonics of spin motion in an antiferromagnet by using large THz magnetic near field, and clarified their relation with the nonlinear spin dynamics.