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Berlin 2018 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 52: Poster II

MA 52.61: Poster

Donnerstag, 15. März 2018, 15:00–18:00, Poster C

Impact of low temperature, high pressure and illumination wavelength on photo-induced effects in BiFeO3 by means of optical spectroscopy — •Fabian Meggle1, Jihaan Ebad Allah1, Michel Viret2, Jens Kreisel3, and Christine Kuntscher11Experimentalphysik II, Universität Augsburg, D-86159 Augsburg, Germany — 2Service de Physique de l’Etat Condensé, CEA Saclay, DSM/IRAMIS/SPEC, URA CNRS 2464, 91191 Gif-Sur-Yvette Cedex, France — 3Materials Research and Technology Department, Luxembourg Institute of Science and Technology, L-4422 Belvaux, Luxembourg

Recently, it has been reported that during illumination with green light BiFeO3 crystals show three absorption features in the optical spectrum between 1.0 and 2.2 eV [1]. We studied the impact of low temperature, high pressure, and illumination wavelength on this photo-induced effect by using optical spectroscopy. Our findings will be discussed in terms of the photostriction effect observed in BiFeO3 [2].

[1] F. Burkert et al., Appl. Phys. Lett. 109, 182903 (2016)

[2] B. Kundys et al., Nat. Mater. 9, 803 (2010)

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