Rasterkraftmikroskop AFM
Zusammenfassung der Projektergebnisse
The MFP-3D atomic force microscope has been used in a number of research projects and scientific works. Two PhD project with focus on investigation of materials properties using atomic force microscopy have been performed in framework of Marie-Curie Initial Training Network “Nanomotion”. The first of these projects deals with investigation of lead-free piezoelectric materials using piezoresponse force microscopy. The effect of composition, temperature, and grain orientation on local piezoelectric properties and domain structure has been addressed for various lead-free ceramics based on (K,Na)NbO3 and (Na,Bi)TiO3. The mechanisms of polarization switching were studied at the sub-grain scale. The second project is devoted to the investigation of composite multiferroic materials consisting of ferroelectric and ferromagnetic components. The magnetoelectric coupling in these materials has been studied using combinations of the piezoresponse and magnetic force microscopy. In particular, a MFP-3D microscope has a built-on option of variable in-plane magnetic field. This allows to address the effect of magnetic field on local piezoelectric properties and polarization switching in-situ. Spatial variation of polarization switching characteristics was studied under a magnetic field. Other scientific works using MFP-3D include: - investigation of local switching behaviour and domain structures in piezoelectric polymer-ceramics composites P(VDF-TrFE)-(Pb,Ba)(Zr,Ti)O3 and P(VDF-TrFE)-BaTiO3. It was shown that the local piezoresponse in the vicinity of the interface between polymer and ceramic is strongly affected by inhomogeneous stresses originating from an incompatibility of thermal expansion coefficients of PVDF and ceramic. This work was performed in collaboration with National University of Science and Technology “MISiS”, Moscow, Russia. - investigation of piezoelectric and magnetic properties of nanoparticles. In particular, we found that polarization of BiFeO3 nanoparticles decreases with decreasing particle size. - studies of temperature effect on domain structures and polarization switching in modified BiFeO3 ceramics. Evolution of domain structures in Sc-doped BiFeO3 at field induced antiferroelectric-ferroelectric phase transition was observed in-situ using piezoresponse force microscopy. - investigation of nanodomains in relaxor ferroelectrics using piezoresponse force microscopy. Polarization switching and stability of the poled state has been studied in (Sr,Ba)Nb2O6 single crystals (in collaboration with the Ural State University, Yekaterinburg, Russia). Temperature evolution of nanodomains was investigated in (Ca,Ba)Nb2O6 single crystals. - investigation of phase transitions and domain dynamics in PbZrO3 single crystals. - investigation of local polarization switching in complex Pb(Yb1/2Nb1/2)O3 - PbTiO3 ceramics. - investigation of electronic states (work function) in organic photovoltaic materials using Kelvin Probe Microscopy.
Projektbezogene Publikationen (Auswahl)
- From mesoscopic to global polar order in the uniaxial relaxor ferroelectric Sr08Ba02Nb2O6. Appl. Phys. Lett. 100, 052903 (2012)
J. Dec, W. Kleemann, V. V. Shvartsman, D. C. Lupascu, and T. Lukasiewicz
- Effect of particle size on ferroelectric and magnetic properties of BiFeO3 nanopowders. Nanotechnology 24, 355701 (2013)
M. Escobar Castillo, V. V. Shvartsman, D. Gobeljic, Y. Gao, J. Landers, H. Wende, and D C Lupascu
- Local ferroelectric properties in polyvinylidene fluoride/barium lead zirconate titanate nanocomposites: Interface effect. J. Appl. Phys. 114, 144102 (2013)
M. V. Silibin, A. V. Solnyshkin, D. A. Kiselev, A. N. Morozovska, E. A. Eliseev, S. A. Gavrilov, M. D. Malinkovich, D. C. Lupascu, and V. V. Shvartsman
- Local polarization in polymer nanocomposites with different crystalline ferroelectric inclusions. Physics, Chemistry and Application of Nanostructures: Reviews and Short Notes to International Conference Nanomeeting - 2013, Minsk, Belarus, May 28-31,2013, 109-112
M. V. Silibin, S. A. Gavrilov, A. V. Solnyshkin, D. A. Kiselev, M. D. Malinkovich, Yu. N. Parkhomenko, M. L. Zheludkevich, V. V. Shvartsman, and D. C. Lupascu
- Magnetoelectric effect in (0-3) CoFe2O4-BaTiO3 (20/80) composite ceramics prepared by the organosol route. Ferroelectrics 448, 77 (2013)
M. Etier, V. V. Shvartsman, Y. Gao, J. Landers, H. Wende, and D. C. Lupascu
- Piezoelectric characteristics of LiNbO3 thin-film heterostructures via piezoresponse force microscopy. J. Nano Electron. Phys. 5, 04041 (2013)
D. A. Kiselev, S. V. Ksenich, R. N. Zhukov, A. S. Bykov, M. D. Malinkovich, V. V. Shvartsman, D. C. Lupascu, and Yu. N. Parkhomenko
- Temperature-insensitive (K,Na)NbO3 -based lead-free piezoactuator ceramics. Adv. Funct. Mater. 23, 4079 (2013)
K. Wang, F.-Z. Yao, W. Jo, D. Gobeljic, V. V. Shvartsman, D. C. Lupascu, J.-F. Li, and J. Rödel
- The microstructure and local piezoelectric response in polymer nanocomposites with different ferroelectric crystalline additions. MRS Online Proceedings Library, 1556, (2013) mrss13-1556-w10-01
D. A. Kiselev, M. D. Malinkovich, Y. N. Parkhomenko, A. V. Solnyshkin, A. A. Bogomolov, M. V. Silibin, S. A. Gavrilov, V. V. Shvartsman, and D. C. Lupascu
(Siehe online unter https://doi.org/10.1557/opl.2013.78) - Ergodicity reflected in macroscopic and microscopic field-dependent behavior of BNT-based relaxors. J. Appl. Phys. 115, 084111 (2014)
R. Dittmer, D. Gobeljic, W. Jo, V. V. Shvartsman, D. C. Lupascu, J. L. Jones, and J. Rödel
(Siehe online unter https://doi.org/10.1063/1.4867157) - Macroscopic and nanoscopic polarization relaxation kinetics in lead-free relaxors Bi1/2Na1/2TiO3-Bi1/2K1/2TiO3- BiZni/2Tii/2O3. J. Amer. Ceram. Soc. 97, 3904 (2014)
D. Gobeljic, R. Dittmer, J. Rödel, V. V. Shvartsman, and D. C. Lupascu
(Siehe online unter https://doi.org/10.1111/jace.13227) - Temperature dependence of the local piezoresponse in (K,Na)NbO3-based ceramics with large electromechanical strain. J. Appl. Phys. 116, 066811 (2014)
D. Gobeljic, V. V. Shvartsman, K. Wang, F. Yao, J.-F. Li, W. Jo, J. Rödel, and D. C. Lupascu
(Siehe online unter https://doi.org/10.1063/1.4891398) - Measuring the magnetoelectric effect across scales. GAMM-Mitt. 38, No. 1,25 - 74 (2015)
D. C. Lupascu, H. Wende, M. Etier, A. Nazrabi, I. Anusca, H. Trivedi, V. V. Shvartsman, J. Landers, S. Salamon, and C. Schmitz-Antoniak
(Siehe online unter https://doi.org/10.1002/gamm.201510003)
