skip to main content

Title: Charge compensation of head-to-head and tail-to-tail domain walls in barium titanate and its influence on conductivity

The effect of the polarization charge compensation by ionic and electronic space charges on domain properties in ferroelectrics with semiconducting features is considered, in particular, the conductivity of head-to-head and tail-to-tail domain walls is studied. It is shown that the domain wall conductivity that is enhanced by electrons or holes depends on the configuration and the types of domains as well as on the energy levels and concentrations of the defects involved. Phase field simulation results are used to explain recent equivocal experimental results on conductivity of charged domain walls in different ferroelectrics.
Authors:
; ;  [1]
  1. Institute of Materials Science, Technische Universit├Ąt Darmstadt, D-64287 Darmstadt (Germany)
Publication Date:
OSTI Identifier:
22308547
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BARIUM COMPOUNDS; CONFIGURATION; CRYSTAL DEFECTS; ELECTRIC CONDUCTIVITY; ELECTRONS; FERROELECTRIC MATERIALS; POLARIZATION; SIMULATION; SPACE CHARGE; TITANATES