{"publication":"Physical Review Materials","type":"journal_article","date_updated":"2023-10-11T09:01:48Z","article_type":"original","language":[{"iso":"eng"}],"volume":2,"department":[{"_id":"15"},{"_id":"230"},{"_id":"35"},{"_id":"288"}],"publication_identifier":{"issn":["2475-9953"]},"title":"Imaging of 180∘ ferroelectric domain walls in uniaxial ferroelectrics by confocal Raman spectroscopy: Unraveling the contrast mechanism","_id":"4769","citation":{"apa":"Rüsing, M., Neufeld, S., Brockmeier, J., Eigner, C., Mackwitz, P., Spychala, K., Silberhorn, C., Schmidt, W. G., Berth, G., Zrenner, A., &#38; Sanna, S. (2018). Imaging of 180∘ ferroelectric domain walls in uniaxial ferroelectrics by confocal Raman spectroscopy: Unraveling the contrast mechanism. <i>Physical Review Materials</i>, <i>2</i>(10). <a href=\"https://doi.org/10.1103/physrevmaterials.2.103801\">https://doi.org/10.1103/physrevmaterials.2.103801</a>","ama":"Rüsing M, Neufeld S, Brockmeier J, et al. Imaging of 180∘ ferroelectric domain walls in uniaxial ferroelectrics by confocal Raman spectroscopy: Unraveling the contrast mechanism. <i>Physical Review Materials</i>. 2018;2(10). doi:<a href=\"https://doi.org/10.1103/physrevmaterials.2.103801\">10.1103/physrevmaterials.2.103801</a>","mla":"Rüsing, Michael, et al. “Imaging of 180∘ Ferroelectric Domain Walls in Uniaxial Ferroelectrics by Confocal Raman Spectroscopy: Unraveling the Contrast Mechanism.” <i>Physical Review Materials</i>, vol. 2, no. 10, American Physical Society (APS), 2018, doi:<a href=\"https://doi.org/10.1103/physrevmaterials.2.103801\">10.1103/physrevmaterials.2.103801</a>.","ieee":"M. Rüsing <i>et al.</i>, “Imaging of 180∘ ferroelectric domain walls in uniaxial ferroelectrics by confocal Raman spectroscopy: Unraveling the contrast mechanism,” <i>Physical Review Materials</i>, vol. 2, no. 10, 2018, doi: <a href=\"https://doi.org/10.1103/physrevmaterials.2.103801\">10.1103/physrevmaterials.2.103801</a>.","short":"M. Rüsing, S. Neufeld, J. Brockmeier, C. Eigner, P. Mackwitz, K. Spychala, C. Silberhorn, W.G. Schmidt, G. Berth, A. Zrenner, S. Sanna, Physical Review Materials 2 (2018).","chicago":"Rüsing, Michael, Sergej Neufeld, Julian Brockmeier, Christof Eigner, P. Mackwitz, K. Spychala, Christine Silberhorn, et al. “Imaging of 180∘ Ferroelectric Domain Walls in Uniaxial Ferroelectrics by Confocal Raman Spectroscopy: Unraveling the Contrast Mechanism.” <i>Physical Review Materials</i> 2, no. 10 (2018). <a href=\"https://doi.org/10.1103/physrevmaterials.2.103801\">https://doi.org/10.1103/physrevmaterials.2.103801</a>.","bibtex":"@article{Rüsing_Neufeld_Brockmeier_Eigner_Mackwitz_Spychala_Silberhorn_Schmidt_Berth_Zrenner_et al._2018, title={Imaging of 180∘ ferroelectric domain walls in uniaxial ferroelectrics by confocal Raman spectroscopy: Unraveling the contrast mechanism}, volume={2}, DOI={<a href=\"https://doi.org/10.1103/physrevmaterials.2.103801\">10.1103/physrevmaterials.2.103801</a>}, number={10}, journal={Physical Review Materials}, publisher={American Physical Society (APS)}, author={Rüsing, Michael and Neufeld, Sergej and Brockmeier, Julian and Eigner, Christof and Mackwitz, P. and Spychala, K. and Silberhorn, Christine and Schmidt, Wolf Gero and Berth, Gerhard and Zrenner, Artur and et al.}, year={2018} }"},"user_id":"22501","year":"2018","intvolume":"         2","status":"public","publisher":"American Physical Society (APS)","author":[{"id":"22501","last_name":"Rüsing","full_name":"Rüsing, Michael","orcid":"0000-0003-4682-4577","first_name":"Michael"},{"full_name":"Neufeld, Sergej","last_name":"Neufeld","id":"23261","first_name":"Sergej"},{"first_name":"Julian","full_name":"Brockmeier, Julian","last_name":"Brockmeier","id":"44807"},{"full_name":"Eigner, Christof","last_name":"Eigner","id":"13244","first_name":"Christof","orcid":"https://orcid.org/0000-0002-5693-3083"},{"first_name":"P.","full_name":"Mackwitz, P.","last_name":"Mackwitz"},{"full_name":"Spychala, K.","last_name":"Spychala","first_name":"K."},{"id":"26263","last_name":"Silberhorn","full_name":"Silberhorn, Christine","first_name":"Christine"},{"last_name":"Schmidt","id":"468","full_name":"Schmidt, Wolf Gero","orcid":"0000-0002-2717-5076","first_name":"Wolf Gero"},{"last_name":"Berth","id":"53","full_name":"Berth, Gerhard","first_name":"Gerhard"},{"full_name":"Zrenner, Artur","last_name":"Zrenner","id":"606","orcid":"0000-0002-5190-0944","first_name":"Artur"},{"first_name":"S.","full_name":"Sanna, S.","last_name":"Sanna"}],"doi":"10.1103/physrevmaterials.2.103801","issue":"10","publication_status":"published","date_created":"2018-10-18T08:50:47Z","project":[{"name":"TRR 142","_id":"53","grant_number":"231447078"},{"_id":"55","name":"TRR 142 - Project Area B"},{"_id":"69","grant_number":"231447078","name":"TRR 142 - Subproject B4"},{"name":"TRR 142 - Subproject B5","_id":"70","grant_number":"231447078"}],"abstract":[{"text":"In recent years, Raman spectroscopy has been used to visualize and analyze ferroelectric domain structures.\r\nThe technique makes use of the fact that the intensity or frequency of certain phonons is strongly influenced\r\nby the presence of domain walls. Although the method is used frequently, the underlying mechanism responsible\r\nfor the changes in the spectra is not fully understood. This inhibits deeper analysis of domain structures based\r\non this method. Two different models have been proposed. However, neither model completely explains all\r\nobservations. In this work, we have systematically investigated domain walls in different scattering geometries\r\nwith Raman spectroscopy in the common ferroelectric materials used in integrated optics, i.e., KTiOPO4,\r\nLiNbO3, and LiTaO3. Based on the two models, we can demonstrate that the observed contrast for domain\r\nwalls is in fact based on two different effects. We can identify on the one hand microscopic changes at the\r\ndomain wall, e.g., strain and electric fields, and on the other hand a macroscopic change of selection rules at the\r\ndomain wall. While the macroscopic relaxation of selection rules can be explained by the directional dispersion\r\nof the phonons in agreement with previous propositions, the microscopic changes can be explained qualitatively\r\nin terms of a simplified atomistic model.","lang":"eng"}]}