| Nanometer spot allocation for Raman spectroscopy on ferroelectrics by polarization and piezoresponse force microscopy | | | Guido Tarrach, Patricio Lagos L., Rodolfo I. Hermans Z.,F. Schlaphof, Ch. Loppacher, and L. M. Eng | | | Pontificia Universidad Catolica de Chile, Technische Universitat Dresden | | |
Applied Physics Letters [database] | | |
Abstract: We report the 100% correlation between polarized light microscopy (PLM), piezoresponse force microscopy (PFM), and micro-Raman spectroscopy when investigating domain-rich ferroelectric systems. In order to allocate the desired spot on a submicrometer scale, both PLM and PFM were combined to elucidate the effective three-dimensional ferroelectric domain distribution. With PFM we observe spike-like a and c domains well inside extended a and c-polarized areas, which were
not conclusive with PLM. The knowledge on such a domain distribution is essential when addressing quantitative micro-Raman spectroscopy. In addition, we show the unambiguous differentiation between a and c domains on the submicrometer scale using the B2 mode of lattice vibrations. | | |
Type: article | | |  |
| | | |
|