Nonergodicity in DRADA deuteron glass

Abstract

A field-heating (FH), field-cooling (FC), zero-field heating (ZFH) sequence was used to study nonergodic polarization response to dc electric field in x=0.28 Rb1-x(ND4)xD2AsO4 (DRADA) deuteron glass. Polarization change in the low-temperature nonergodic region varied with temperature T nearly as Ty, where 5≤y≤6. This result is compared with predictions of the bound charge semiconductor model for proton glass.