Thermal stability of ferroelectric domain gratings in Rb-doped KTP
2015 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 107, no 8, 082906Article in journal (Refereed) Published
We study the thermal stability of domain walls in periodically poled Rb-doped KTP crystals. Domain-wall motion is observed after annealing the crystals above 550 degrees C. This motion is highly anisotropic along the a- and b- crystallographic axes. Along the b-axis domain wall motion is in the order of tens of micrometers. In the a-direction, it results in either three orders of magnitude smaller domain wall displacement or in domain merging, depending on the initial domain configuration. We show that the thermal stability of the domain gratings depends on their periodicity, resulting in complete backswitching for sub-micrometer domains annealed at 730 degrees C.
Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2015. Vol. 107, no 8, 082906
IdentifiersURN: urn:nbn:se:kth:diva-173981DOI: 10.1063/1.4929817ISI: 000360593900056ScopusID: 2-s2.0-84940524547OAI: oai:DiVA.org:kth-173981DiVA: diva2:858891
FunderSwedish Foundation for Strategic Research Swedish Research Council
QC 201510052015-10-052015-09-242015-12-01Bibliographically approved