Marin Alexe
University of Warwick
385 Papers
2.6K Citations
Marin Alexe is an academic researcher from University of Warwick. The author has contributed to research in topics: Ferroelectricity & Thin film. The author has an hindex of 66, co-authored 369 publications. Previous affiliations of Marin Alexe include South China Normal University & Korea Research Institute of Standards and Science.
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Papers
Role of domain walls in the abnormal photovoltaic effect in BiFeO 3
TL;DR: In this paper, the anomalous photovoltaic (PV) effect in BiFeO3 (BFO) thin films, which resulted in open circuit voltages considerably larger than the band gap of the material, has generated a revival of the entire field of photoferroelectrics.
Reversible electrical switching of spin polarization in multiferroic tunnel junctions.
TL;DR: It is shown that owing to the coupling between magnetization and ferro electric polarization at the interface between the electrode and barrier of a multiferroic tunnel junction, the spin polarization of the tunnelling electrons can be reversibly and remanently inverted by switching the ferroelectric polarization ofThe barrier.
Atomic-scale study of electric dipoles near charged and uncharged domain walls in ferroelectric films
TL;DR: Using the negative spherical-aberration imaging technique in an aberration-corrected transmission electron microscope, a large difference in atomic details between charged and uncharged domain walls is reported.
Direct Observation of Continuous Electric Dipole Rotation in Flux-Closure Domains in Ferroelectric Pb(Zr,Ti)O3
TL;DR: Experimental evidence for continuous rotation of the dipoles closing the flux of 180° domains in a ferroelectric perovskite thin film is obtained by aberration-corrected transmission electron microscopy.
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Flexo-photovoltaic effect
TL;DR: The bulk photovoltaic effect, which is free from the thermodynamic Shockley-Queisser limit but usually manifested only in noncentrosymmetric materials, can be realized in any semiconductor, including silicon, by mediation of flexoelectric effect.