X-ray diffraction constitutes a powerful technique with which to characterise ferroelectric domains. Here we describe the principles of ferroelectric nanodomain diffraction and present some results for PbTiO3 thin films grown under tensile strain on two different substrates, with thicknesses below and above the critical thickness for strain relaxation. The combination of conventional and grazing incidence diffraction and the analysis of the scattering between Bragg peaks allowed the identification of a new polar symmetry in ultra-thin films with only anti-parallel 180° domains. Thick films showed tetragonal 90° ferroelectric/ferroelastic domains instead, with a depressed TC and a domain periodicity largely independent of temperature.
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
X-ray diffraction constitutes a powerful technique with which to characterise ferroelectric domains....
X-ray diffraction constitutes a powerful technique with which to characterise ferroelectric domains....
X-ray diffraction constitutes a powerful technique with which to characterise ferroelectric domains....
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
In this thesis it is shown that different substrates and different film thicknesses lead to differen...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180° domains to 90° do...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
X-ray diffraction constitutes a powerful technique with which to characterise ferroelectric domains....
X-ray diffraction constitutes a powerful technique with which to characterise ferroelectric domains....
X-ray diffraction constitutes a powerful technique with which to characterise ferroelectric domains....
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
In this thesis it is shown that different substrates and different film thicknesses lead to differen...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180° domains to 90° do...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
In epitaxial ferroelectric thin films under tensile strain, a transition from 180 degrees domains to...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...
Thin films of PbTiO3, a classical ferroelectric, have been grown under tensile strain on single-crys...