215 citations · 441 across the 5 of their papers we have counts for
5 papers
Lateral piezoelectric response across ferroelectric domain walls in thin films
J. Guyonnet, H. Bea, P. Paruch
In purely c-axis oriented PbZrTiO ferroelectric thin films, a lateral piezoresponse force microscopy signal is observed at the position of 180°domain walls, whe…
Nanoscale polarization switching mechanisms in multiferroic BiFeO thin films
H. Béa, M. Bibes, A. Barthélémy +1
Ferroelectric switching in BiFeO multiferroic thin films with intrinsic ``stripe-like'' and ``bubble-like'' polydomain configurations was studied by piezoresponse force microsc…
Shear effects in lateral piezoresponse force microscopy at 180 ferroelectric domain walls
J. Guyonnet, H. Bea, F. Guy +5
In studies using piezoresponse force microscopy, we observe a non-zero lateral piezoresponse at 180 domain walls in out-of-plane polarized, c-axis-oriented tetragonal ferro…
Structural distortion and magnetism of BiFeO3 epitaxial thin films: a Raman spectroscopy and neutron diffraction study
H. Bea, M. Bibes, S. Petit +2
A previous study of the growth conditions has shown that single-phase BiFeO3 thin films can only be obtained in a narrow pressure-temperature window and that these films display a…
Tunnel magnetoresistance and robust room temperature exchange bias with multiferroic BiFeO3 epitaxial thin films
H. Bea, M. Bibes, S. Cherifi +8
We report on the functionalization of multiferroic BiFeO3 epitaxial films for spintronics. A first example is provided by the use of ultrathin layers of BiFeO3 as tunnel barriers i…