{"id":246010,"date":"2026-10-27T05:41:48","date_gmt":"2026-10-27T10:41:48","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/10\/patterns-of-polar-vortices-discovered-in-lead-free-superlattices-on-silicon"},"modified":"2026-10-27T05:41:48","modified_gmt":"2026-10-27T10:41:48","slug":"patterns-of-polar-vortices-discovered-in-lead-free-superlattices-on-silicon","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/10\/patterns-of-polar-vortices-discovered-in-lead-free-superlattices-on-silicon","title":{"rendered":"Patterns of polar vortices discovered in lead-free superlattices on silicon"},"content":{"rendered":"\n<p>A team at HZB has, for the first time, reported polar vortices in (BaTiO\u2083\/SrTiO\u2083)\u2081\u2080 superlattices on silicon. These results expand the range of materials and substrates on which polar topological textures can occur and open up new options for incorporating complex ferroelectric states into silicon-based technologies.<\/p>\n<p>Polar textures such as vortices have so far been observed almost exclusively in lead-containing superlattices comprising ultrathin ferroelectric and dielectric titanate layers on oxide substrates. The delicate balance between electrical forces, mechanical stresses (imposed by the substrate) and the energy required to change the direction of polarization leads to distinctive electrical dipole patterns in the ferroelectric layers.<\/p>\n<p>In principle, structures with complex polar states could be used to develop novel components with specific functions, as the structures are small, stable and can be influenced by external electric fields. However, to achieve this, it would be important to replace the toxic lead and deposit the layers on silicon substrates, the ubiquitous platform of the semiconductor industry.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A team at HZB has, for the first time, reported polar vortices in (BaTiO\u2083\/SrTiO\u2083)\u2081\u2080 superlattices on silicon. These results expand the range of materials and substrates on which polar topological textures can occur and open up new options for incorporating complex ferroelectric states into silicon-based technologies. Polar textures such as vortices have so far been [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1635],"tags":[],"class_list":["post-246010","post","type-post","status-publish","format-standard","hentry","category-materials"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=246010"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/246010\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=246010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=246010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=246010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}