skip to main content

SciTech ConnectSciTech Connect

Title: Polarization reversal and domain kinetics in magnesium doped stoichiometric lithium tantalate

The polarization reversal process has been studied in 1 mol. % MgO doped stoichiometric lithium tantalate (LT) single crystal. The revealed stages of domain structure evolution represent (1) continuous nucleation and growth of isolated hexagonal domains with walls oriented along Y directions and (2) continuous motion of the plane domain walls stimulated by merging with isolated domains. The activation field dependence of the switching time has been revealed. The coercive field for quasi-static switching is about 150 V/mm. The bulk screening process has been analyzed. The main parameters of the switching process have been compared with other representatives of LT family.
Authors:
; ;  [1] ;  [2] ;  [1]
  1. Institute of Natural Sciences, Ural Federal University, 620000 Ekaterinburg (Russian Federation)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
22350910
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 15; 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; CRYSTAL GROWTH; DOMAIN STRUCTURE; DOPED MATERIALS; LITHIUM COMPOUNDS; MAGNESIUM ADDITIONS; MAGNESIUM OXIDES; MONOCRYSTALS; POLARIZATION; SCREENING; STOICHIOMETRY; TANTALATES