2013/08/22 by C. Becher, Christoph Becher, M. Trassin +15
Materials Science · Mathematics · Physics and Astronomy · #Condensed matter physics #Curie #Curie temperature #Dielectric #Electric field #Electronic and Structural Properties of Oxides #Ferroelectric and Piezoelectric Materials #Ferroelectricity #Ferromagnetism #Geometry #Heterojunction #Homogeneous space #Materials science #Mathematics #Multiferroics and related materials #Optoelectronics #Physics #Point reflection #Poling #Quantum mechanics #Symmetry (geometry) #Symmetry breaking #Symmetry operation #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1038/ncomms5295
published as Nature Communications 5, 4295 (2014)
arxiv created 2013/08/22 · openalex publication_date 2014/07/02 · arxiv updated 2014/07/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We demonstrate a concept for post-growth symmetry control in oxide heterostructures. A functional oxide is sandwiched between two ferroelectric layers and inversion symmetry at the position of the oxide constituent is reversibly switched on or off by layer-selective electric-field poling. The functionality of this process is monitored by optical second harmonic generation. The generalization of our approach to other materials and symmetries is considered. We thus establish ferroic trilayer structures as device components in which symmetry-driven charge-, spin-, and strain-related functionalities can be activated and deactivated at will.