Zobrazeno 1 - 10
of 3 177
pro vyhledávání: '"Catalan, G"'
Autor:
Baker, J. S., Paściak, M., Shenton, J. K., Vales-Castro, P., Xu, B., Hlinka, J., Márton, P., Burkovsky, R. G., Catalan, G., Glazer, A. M., Bowler, D. R.
First principles density functional theory (DFT) simulations of antiferroelectric (AFE) PbZrO$_3$ and PbHfO$_3$ reveal a dynamical instability in the phonon spectra of their purported low temperature $Pbam$ ground states. This instability doubles the
Externí odkaz:
http://arxiv.org/abs/2102.08856
Autor:
Everhardt, A. S., Denneulin, T., Gruenebohm, A., Shao, Y-T., Ondrejkovic, P., Zhou, S., Domingo, N., Catalan, G., Hlinka, J., Zuo, J-M., Matzen, S., Noheda, B.
Publikováno v:
Applied Physics Reviews 7, 011402 (2020)
Proximity to phase transitions (PTs) is frequently responsible for the largest dielectric susceptibilities in ferroelectrics. The impracticality of using temperature as a control parameter to reach those large responses has motivated the design of so
Externí odkaz:
http://arxiv.org/abs/1907.09709
Autor:
Hoang LP; European XFEL, 22869, Schenefeld, Germany.; Max Planck Institute for the Structure and Dynamics of Matter, 22761, Hamburg, Germany.; Institute of Experimental and Applied Physics, Kiel University, 24098, Kiel, Germany., Spasojevic I; Department de Física, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain., Lee TL; Diamond Light Source Ltd., Didcot, OX110DE, Oxfordshire, UK., Pesquera D; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193, Bellaterra, Barcelona, Spain., Rossnagel K; Institute of Experimental and Applied Physics, Kiel University, 24098, Kiel, Germany.; Ruprecht Haensel Laboratory, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany., Zegenhagen J; Diamond Light Source Ltd., Didcot, OX110DE, Oxfordshire, UK., Catalan G; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, 08193, Bellaterra, Barcelona, Spain.; Institucio Catalana de Recerca i Estudis Avançats (ICREA), 08010, Barcelona, Catalonia, Spain., Vartanyants IA; Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany., Scherz A; European XFEL, 22869, Schenefeld, Germany., Mercurio G; European XFEL, 22869, Schenefeld, Germany. giuseppe.mercurio@xfel.eu.
Publikováno v:
Scientific reports [Sci Rep] 2024 Oct 16; Vol. 14 (1), pp. 24250. Date of Electronic Publication: 2024 Oct 16.
Publikováno v:
In Fusion Engineering and Design December 2020 161
Autor:
Pérez-Tomás, A., Chikoidze, E., Dumont, Y., Jennings, M.R., Russell, S.O., Vales-Castro, P., Catalan, G., Lira-Cantú, M., Ton –That, C., Teherani, F.H., Sandana, V.E., Bove, P., Rogers, D.J.
Publikováno v:
In Materials Today Energy December 2019 14
Autor:
Jarrier, R., Marti, X., Herrero-Albillos, J., Ferrer, P., Haumont, R., Gemeiner, P., Geneste, G., Berthet, P., Schülli, T., Cvec, P., Blinc, R., Wong, Stanislaus S., Park, Tae-Jin, Alexe, M., Carpenter, M. A., Scott, J. F., Catalan, G., Dkhil, B.
Publikováno v:
Phys. Rev. B 85, 184104 (2012)
We combine a wide variety of experimental techniques to analyze two heretofore mysterious phase transitions in multiferroic bismuth ferrite at low temperature. Raman spectroscopy, resonant ultrasound spectroscopy, EPR, X-ray lattice constant measurem
Externí odkaz:
http://arxiv.org/abs/1202.3387
Autor:
Lu, H., Bark, C. -W., Ojos, D. Esque de los, Alcala, J., Eom, C. -B., Catalan, G., Gruverman, A.
Ferroelectric materials are characterized by the presence of an electric dipole that can be reversed by application of an external electric field, a feature that is exploited in ferroelectric memories. All ferroelectrics are piezoelectric, and theref
Externí odkaz:
http://arxiv.org/abs/1110.1306
Autor:
Ganguly S; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain., Pesquera D; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain., Garcia DM; Advanced NEMS Laboratory, Institute of Mechanical Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland., Saeed U; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain., Mirzamohammadi N; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain., Santiso J; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain., Padilla J; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain., Roque JMC; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain., Laulhé C; Université Paris-Saclay, Synchrotron SOLEIL, Saint-Aubin, 91190, France., Berenguer F; Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin BP 48, Gif-sur-Yvette, 91190, France., Villanueva LG; Advanced NEMS Laboratory, Institute of Mechanical Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, 1015, Switzerland., Catalan G; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona, 08193, Catalonia, Spain.; ICREA - Institució Catalana de Recerca i Estudis Avançats, Barcelona, 08010, Catalonia.
Publikováno v:
Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2024 Jul; Vol. 36 (27), pp. e2310198. Date of Electronic Publication: 2024 Apr 25.
Autor:
Marti, X., Ferrer, P., Herrero-Albillos, J., Narvaez, J., Holy, V., Barrett, N., Alexe, M., Catalan, G.
A surface layer ("skin") that is functionally and structurally different from the bulk was found in single crystals of BiFeO3. Impedance analysis indicates that a previously reported anomaly at T* ~ 275 \pm 5 ^/circC corresponds to a phase transition
Externí odkaz:
http://arxiv.org/abs/1012.2306
Publikováno v:
Phys. Rev. B 81, 172101 (2010)
The behaviour of the cross-sectional polarization field is explored for thin nanowires of barium titanate from first-principles calculations. Topological defects of different winding numbers have been obtained, beyond the known textures in ferroelect
Externí odkaz:
http://arxiv.org/abs/0908.3617