Multiple Aging Mechanisms in Ferroelectric Deuterated Potassium Dihydrogen Phosphate
arXiv:1812.00451 · doi:10.1063/1.5090764
Abstract
The anomalously large dielectric aging in ferroelectric partially deuterated potassium dihydrogen phosphate (DKDP) is found to have multiple distinct mechanisms. Two components cause decreases in dielectric response over a limited range of fields around the aging field. A large fraction of this aging occurs on time scales of ~1000s after a field change, as expected for a hydrogen/deuterium diffusion mechanism. A slower component can give almost complete loss of domain-wall dielectric response at the aging field after weeks of aging. There is also a particularly unusual aging in which the dielectric response increases with time after rapid cooling.
arXiv comment31 typed pages including 11 figures
References in corpus (4)
- Aging phenomena in spin glass and ferromagnetic phases: domain growth and wall dynamics
- Influence of the electric field on the latent heat of the ferroelectric phase transition in KDP
- Glassy Domain Wall Matter in KH2PO4 Crystal: Field-Induced Transition
- Aging Dynamics in Ferroelectric Deuterated Potassium Dihydrogen Phosphate