206 citations · 229 across the 2 of their papers we have counts for
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Engineering multiferroism in CaMnO
Satadeep Bhattacharjee, Eric Bousquet, Philippe Ghosez
From first-principles calculations, we investigate the structural instabilities of CaMnO. We point out that, on top of a strong antiferrodistortive instability responsible for…
First-principle calculation of the dielectric and dynamical properties of orthorhombic CaMnO
Satadeep Bhattacharjee, Eric Bousquet, Philippe Ghosez
The structural, dielectric and dynamical properties of the low temperature antiferromagnetic orthorhombic phase of CaMnO have been computed from first principles using a densit…
Direct evidence for ferroelectric polar distortion in ultrathin lead titanate perovskite films
L. Despont, C. Lichtensteiger, C. Koitzsch +7
X-ray photoelectron diffraction is used to directly probe the intra-cell polar atomic distortion and tetragonality associated with ferroelectricity in ultrathin epitaxial PbTiO3 fi…
Finite-size effects in BaTiO3 nanowires
Gregory Geneste, Eric Bousquet, Javier Junquera +1
The size dependence of the ferroelectric properties of BaTiO nanowires is studied from first-principles. We show that the ferroelectric distortion along the wire axis disappear…