Electric-field-induced monoclinic phase in (Ba,Sr)TiO$_3$ thin film

A. S. Anokhin; Yu. I. Yuzyuk; Yu. I. Golovko; V. M. Mukhortov; M. El Marssi

doi:10.1063/1.3573516

Electric-field-induced monoclinic phase in (Ba,Sr)TiO$_3$ thin film

Materials Science 2015-05-20 v1

Authors: A. S. Anokhin , Yu. I. Yuzyuk , Yu. I. Golovko , V. M. Mukhortov , M. El Marssi

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We have studied electric-field-induced symmetry lowering in the tetragonal (001)-oriented heteroepitaxial (Ba $_{0.8}$ Sr $_{0.2}$ )TiO $_3$ thin film deposited on (001)MgO substrate. Polarized micro-Raman spectra were recorded from the film area in between two planar electrodes deposited on the film surface. Presence of \textit{c}-domains with polarization normal to the substrate was confirmed from polarized Raman study under zero field, while splitting and hardening of the \textit{E}(TO) soft mode and polarization changes in the Raman spectra suggest monoclinic symmetry under external electric field.

Keywords

electric-field-induced phase monoclinic symmetry BaSrTiO3 thin film polarized micro-Raman soft mode

Cite

@article{arxiv.1009.5857,
  title  = {Electric-field-induced monoclinic phase in (Ba,Sr)TiO$_3$ thin film},
  author = {A. S. Anokhin and Yu. I. Yuzyuk and Yu. I. Golovko and V. M. Mukhortov and M. El Marssi},
  journal= {arXiv preprint arXiv:1009.5857},
  year   = {2015}
}

Related papers

View all related →