Novel Dielectric Anomaly in the Hole-DopedLa2Cu1−xLixO4andLa2−xSrxNiO4Insulators: Signature of an Electronic Glassy State

Novel Dielectric Anomaly in the Hole-DopedLa2Cu1−xLixO4andLa2−xSrxNiO4Insulators: Signature of an Electronic Glassy State