Antiferromagnetism in CaCu${}_3$Ti${}_4$O${}_{12}$ studied by magnetic Raman spectroscopy

A. Koitzsch, G. Blumberg, A. Gozar +4

For CaCu${}_3$Ti${}_4$O${}_{12}$ -- an insulator that exhibits a giant dielectric response above 100 K -- Cu${}^{2+}$ antiferromagnetic spin ordering has been investigated by magnetic…