NANOSENSORS\u2122 Platinum Silicide<\/a> PtSi-NCH<\/a> AFM probes were used for the Near-field infrared spectroscopy. Atomic force and piezoforce imaging reveal the different orientations of directional order parameters and domain wall character, providing a physical playground for graph theory. *<\/p>\n\n\n\n *K. A. Smith, E. A. Nowadnick, S. Fan, O. Khatib, S. J. Lim, B. Gao, N. C. Harms, S. N. Neal, J. K. Kirkland, M. C. Martin, C. J. Won, M. B. Raschke, S.-W. Cheong, C. J. Fennie, G. L. Carr, H. A. Bechtel and J. L. Musfeldt Please follow this external link to read the full article: https:\/\/rdcu.be\/b2rPq<\/a><\/p>\n\n\n\n Open Access: The article \u201cInfrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca3<\/sub>Ti2<\/sub>O7<\/sub><\/em>\u201d by K. A. Smith, E. A. Nowadnick, S. Fan, O. Khatib, S. J. Lim, B. Gao, N. C. Harms, S. N. Neal, J. K. Kirkland, M. C. Martin, C. J. Won, M. B. Raschke, S.-W. Cheong, C. J. Fennie, G. L. Carr, H. A. Bechtel and J. L. Musfeldt is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article\u2019s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article\u2019s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http:\/\/creativecommons.org\/licenses\/by\/4.0\/.<\/p>\n","protected":false},"excerpt":{"rendered":" Ferroic materials are well known to exhibit heterogeneity in the form of domain walls. Understanding the properties of these boundaries is crucial for controlling functionality with external stimuli and for realizing their potential for ultra-low power memory and logic devices as well as novel computing architectures.* In the article \u201cInfrared nano-spectroscopy of ferroelastic domain walls… Read More »Infrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca3Ti2O7<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":4384,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[16],"tags":[17,19,345,314,433,187,431,432,188,434,64,63,56,44,430,60],"class_list":["post-4381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science-technology","tag-afm-probes","tag-atomic-force-microscopy","tag-atomic-force-spectroscopy","tag-chemical-physics","tag-domain-walls","tag-ferroelectrics","tag-ferroelectrics-and-multiferroics","tag-ferroic-materials","tag-multiferroics","tag-near-field-infrared-spectroscopy","tag-pfm","tag-piezoresponse-force-microscopy","tag-platinum-silicide","tag-platinum-silicide-afm-probes","tag-ptsi-nch","tag-scanning-probe-microscopy"],"_links":{"self":[{"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/posts\/4381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/comments?post=4381"}],"version-history":[{"count":0,"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/posts\/4381\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/media\/4384"}],"wp:attachment":[{"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/media?parent=4381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/categories?post=4381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nanosensors.com\/blog\/wp-json\/wp\/v2\/tags?post=4381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/nanosensors.com\/blog\/wp-content\/uploads\/2022\/11\/figure-2-from-Infrared-nano-spectroscopy-of-ferroelastic-domain-walls-in-hybrid-improper-ferroelectric-Ca3Ti2O7-1024x749-2.jpg\")
Combining scanning techniques to locate domain walls. a, b Atomic force microscopic (AFM) images of the crystal surfaces showing the two ferroelastic domain walls of interest (at the edges of the dark blue stripes). These ferroelastic walls separate domains of different spontaneous strain and are also 90\u2218 ferroelectric walls. DW 1 and DW 2 refer to domain walls 1 and 2. Red arrows indicate direction and path of the line scans. The nano-spectroscopic line scans are taken perpendicular to the wall, and the contact angle from one domain to another is 90\u2218. c AFM topography of a smooth area near an identified surface defect (indicated by a green circle) and step edge of approximately 100\u2009nm height (indicated with a red arrow) compared with d the piezoresponse force microscopic (PFM) image of the same area revealing the placement and orientation of the 180\u2218 ferroelectric domains, indicated by yellow(+) or blue(\u2212) regions with black or white arrows to indicate the polarization direction. All of these structures are present at room temperature <\/figcaption><\/figure>\n\n\n\n
Infrared nano-spectroscopy of ferroelastic domain walls in hybrid improper ferroelectric Ca3<\/sub>Ti2<\/sub>O7<\/sub><\/strong>
Nature Communications volume 10, Article number: 5235 (2019)
DOI: https:\/\/doi.org\/10.1038\/s41467-019-13066-9<\/p>\n\n\n\n