Nonreciprocal spin wave in room-temperature van der Waals ferromagnet $(\mathrm{F}{\mathrm{e}}_{0.78}\mathrm{C}{\mathrm{o}}_{0.22}{)}_5\mathrm{GeT}{\mathrm{e}}_2$

Guofu Xu, Feihao Pan, Jiyang Ou +7

Here, we investigate the spin waves in room-temperature van der Waals ferromagnet $(\mathrm{F}{\mathrm{e}}_{0.78}\mathrm{C}{\mathrm{o}}_{0.22}{)}_5\mathrm{GeT}{\mathrm{e}}_2$ by utilizing Brillouin light scattering technique. The spin…