{"id":283,"date":"2016-07-22T12:00:09","date_gmt":"2016-07-22T03:00:09","guid":{"rendered":"http:\/\/localhost\/riis\/en\/?p=283"},"modified":"2016-08-03T14:50:12","modified_gmt":"2016-08-03T05:50:12","slug":"%e8%ac%9b%e6%bc%94%e4%bc%9a7%e6%9c%8822%e6%97%a5%ef%bc%88prof-henrik-m-ronnow-%e3%82%b9%e3%82%a4%e3%82%b9%e9%80%a3%e9%82%a6%e5%b7%a5%e7%a7%91%e5%a4%a7%e5%ad%a6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.riis.okayama-u.ac.jp\/m\/archives\/283","title":{"rendered":"RIIS Lecture June 22 by Prof. Henrik M. R\u00f8nnow"},"content":{"rendered":"<p>RIIS Lecture<\/p>\r\n\r\n\r\n<p>\u5927\u4f1a\u8b70\u5ba4 (Main Conference room of Faculty of Science) 16:00 -17:00 of Friday, 22 July 2016<\/p>\r\n\r\n\r\n<p>Prof. Henrik M. R\u00f8nnow, Head of Laboratory for Quantum Magnetism \u2013 LQM, \u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne \u2013 EPFL (Visitor Centre for Emergent Matter Science, RIKEN, President for Swiss Neutron Scattering Society \u2013 SGN)<\/p>\r\n\r\n\r\n<p>Title: Hubbard heritage in undoped cuprates \u2013 and conjecture for finding new superconductors<\/p>\r\n\r\n\r\n<p>Abstract:<\/p>\r\n\r\n\r\n<p>Neutron Spectroscopy is a powerful technique to measure magnetic excitation spectra. I will present how neutron spectroscopy allow us to reach very detailed understanding of the 2D Heisenberg antiferromagnet and how this model is derived from the Hubbard model at half filling. This allowed establishing a unified one-band hubbard model for a series of undoped cuprates, and allowed developing a new theory that suggests fractionalization of spin-waves into deconfined spinons at high energy. In the second part I will show how neutron spectroscopy reveals similarities between cuprates and iron based superconductors and present a conjecture for how to find new superconductors with the aid of next generation neutron spectrometers (CAMEA), allowing spectroscopy from sub-mm3 crystals.<\/p>\r\n\r\n\r\n<p>Contact person, Yoshihiro Kubozono (RIIS) ex 7850<\/p>","protected":false},"excerpt":{"rendered":"RIIS Lecture \u5927\u4f1a\u8b70\u5ba4 (Main Conference room of Faculty of Science) 16:00 -17:00 of Friday, 22 July 2016 Prof. Henr...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,6,7],"tags":[],"_links":{"self":[{"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/posts\/283"}],"collection":[{"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/comments?post=283"}],"version-history":[{"count":1,"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/posts\/283\/revisions"}],"predecessor-version":[{"id":460,"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/posts\/283\/revisions\/460"}],"wp:attachment":[{"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/media?parent=283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/categories?post=283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.riis.okayama-u.ac.jp\/m\/wp-json\/wp\/v2\/tags?post=283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}