Controllable optical activity of non-spherical Ag and Co SERS substrate with different magnetic field
Fan Chun-Zhen1, †, Zhu Shuang-Mei1, 2, Xin Hao-Yi1
       

(color online) (a)–(c) SEM images of the prepared non-spherical silver nanoparticles with different magnifications; (d) and (e) TEM images of the non-spherical silver nanoparticles; (f) absorption spectrum of the non-spherical Ag colloid.