Dynamic birefringence and chirality of magnetically controllable assemblies of anisotropic plasmonic nanoparticles in dispersion

Materials

Gold(III) chloride trihydrate (HAuCl₄·3H₂O; ≥99.9%), CTAB (≥98%), sodium borohydride (NaBH₄; 99%), trisodium citrate, silver nitrate (AgNO₃; 99.9999%), L-ascorbic acid (reagent grade), CTAC (≥98%), citric acid (ACS reagent,…