A Novel Dielectric Anomaly in Cuprates and Nickelates: Signature of an Electronic Glassy State

Tuson Park, Z. Nussinov, K. R. A. Hazzard +8

The low-frequency dielectric response of hole-doped insulators La_{2}Cu_{1-x}Li_{x}O_{4} and La_{2-x}Sr_{x}NiO_{4} shows a large dielectric constant ε^{'} at high temperature and a…