From the 2 of 5.3k papers with an AI index.
29.3k citations
- Centre National de la Recherche ScientifiqueFR1.2k papers
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6 papers · 2 filters
Pressure on charged domain walls and additional imprint mechanism in ferroelectrics
P. Mokry, A. K. Tagantsev, J. Fousek
The impact of free charges on the local pressure on a charged ferroelectric domain wall produced by an electric field has been analyzed. A general formula for the local pressure on…
Magnetism in Graphene Induced by Single-Atom Defects
Oleg V. Yazyev, Lothar Helm
We study from first principles the magnetism in graphene induced by single carbon atom defects. For two types of defects considered in our study, the hydrogen chemisorption defect…
Piezoelectric Response and Free Energy Instability in the Perovskite Crystals BaTiO3, PbTiO3 and Pb(Zr,Ti)O3
Marko Budimir, Dragan Damjanovic, Nava Setter
The question of the origin of the piezoelectric properties enhancement in perovskite ferroelectrics is approached by analyzing the Gibbs free energy of tetragonal BaTiO3, PbTiO3 an…
Anharmonicity of BaTiO_3 single crystals
Y. L. Wang, A. K. Tagantsev, D. Damjanovic +3
By analyzing the dielectric non-linearity with the Landau thermodynamic expansion, we find a simple and direct way to assess the importance of the eighth order term. Following this…
Engineering the spatial confinement of exciton-polaritons in semiconductors
Reda Idrissi Kaitouni, Ounsi El Daif, Maxime Richard +8
We demonstrate the spatial confinement of electronic excitations in a solid state system, within novel artificial structures that can be designed having arbitrary dimensionality an…
Band Mapping in One-Step Photoemission Theory: Multi-Bloch-Wave Structure of Final States and Interference Effects
E. E. Krasovskii, V. N. Strocov, N. Barrett +3
A novel Bloch-waves based one-step theory of photoemission is developed within the augmented plane wave formalism. Implications of multi-Bloch-wave structure of photoelectron final…