title: Ferroelectric-specific stark effect in stoichiometric LiNbO3:Fe at room temperature.
abstract: By means of EPR spectroscopy of LiNbO(3):Fe at room temperature (RT) it is shown that the Stark effect in ferroelectric crystals can be different from that observed in other materials. Novel properties appear when an external E field reverses the direction of the spontaneous polarization, the direction of the linear Stark shift stays the same with a reversal of the E field. The corresponding spectral line shifts can occur over a long time scale (hours). These properties seem to be a general feature of the Stark effect in ferroelectric crystals when the external E field exceeds the coercive field.
authors: A.F. Ioffe Physico-Technical Institute, RAS, 194021 St. Petersburg, Russia.
authors: S A
authors: SA
authors: Basun
authors: V E
authors: VE
authors: Bursian
authors: D R
authors: DR
authors: Evans
authors: A A
authors: AA
authors: Kaplyanskii
authors: A G
authors: AG
authors: Razdobarin
authors: L S
authors: LS
authors: Sochava