{"id":4574,"date":"2021-06-21T17:13:07","date_gmt":"2021-06-21T16:13:07","guid":{"rendered":"https:\/\/research.kent.ac.uk\/pqm\/?p=4574"},"modified":"2021-07-01T17:43:46","modified_gmt":"2021-07-01T16:43:46","slug":"4574","status":"publish","type":"post","link":"https:\/\/research.kent.ac.uk\/pqm\/2021\/06\/21\/4574\/","title":{"rendered":"LaNiC2 and LaNiGa2: The Compelling Case for Non-unitary Triplet Pairing"},"content":{"rendered":"

Here’s the abstract of the other talk I gave today at “Condensed Matter and Quantum Materials (CMQM 2021)”<\/a>. The slides can be viewed\/downloaded using SlideShare here<\/a>.<\/p>\n

Session: <\/em><\/p>\n

Superconductivity<\/p>\n

Title:<\/em><\/p>\n

“LaNiC2 and LaNiGa2: The Compelling Case for Non-unitary Triplet Pairing”<\/strong><\/p>\n

Authors:<\/em><\/p>\n

James F Annett (1), G\u00e1bor Csire (1,2), Sudeep Kumar Ghosh (3), Martin Gradhand (1), Adrian D Hillier (4), Jorge Quintanilla (3)<\/u>, Tian Shang (5,6), Michael Smidman (7) Bal\u00e1zs \u00dajfalussy (8) , Philip Whittlesea (3), and Huiqiu Yuan (7,9)<\/p>\n

(1) University of Bristol (2) ICN2 (3) University of Kent (4) ISIS Facility (5) PSI (6) Universit\u00e4t Z\u00fcrich (7) Zhejiang University (8) Hungarian Academy of Sciences (9) Nanjing University<\/p>\n

Abstract: <\/em><\/p>\n

There is a compelling case that non-centrosymmetric LaNiC2 and centrosymmetric LaNiGa2 belong to a new class of fully-gapped, internally-antisymmetric, non-unitary triplet (INT) superconductors. I will review the theoretical and experimental evidence [1], starting from the original observations of increased muon spin relaxation rate and symmetry-based arguments in favour of non-unitary triplet pairing and culminating in the current, quantitative, single-parameter theory [2]. I will highlight what remains unknown about these systems and point out possible future directions.<\/p>\n

References:<\/em><\/p>\n

[1] S. Ghosh, M. Smidman, T. Shang, J. Annett, A. Hillier, J. Quintanilla, and H. Yuan, \u201cRecent progress on superconductors with time-reversal symmetry breaking\u201d, Journal of Physics: Condensed Matter<\/em> 33<\/strong>, 033001 (2021). DOI: 10.1088\/1361-648X\/abaa06.<\/p>\n

[2] S. Ghosh, G. Csire, P. Whittlesea, J. Annett, M. Gradhand, and J. Quintanilla, \u201cQuantitative theory of triplet pairing in the unconventional superconductor LaNiGa2\u201d, Phys. Rev. B<\/em> 101<\/strong>, 100506(R<\/em>), DOI: 10.1103\/PhysRevB.101.100506.<\/p>\n

\"\"<\/a>

Click on the image to view\/downloads the slides on SlideShare<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Here’s the abstract of the other talk I gave today at “Condensed Matter and Quantum Materials (CMQM 2021)”. The slides can be viewed\/downloaded using SlideShare here. Session: Superconductivity Title: “LaNiC2 and LaNiGa2: The Compelling Case for Non-unitary Triplet Pairing” Authors: James F Annett (1), G\u00e1bor Csire (1,2), Sudeep Kumar Ghosh (3), Martin Gradhand (1), Adrian […]<\/p>\n","protected":false},"author":134,"featured_media":4577,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[647],"tags":[590,977,980,983,816,675,972,553,892,587,813,672],"class_list":["post-4574","post","type-post","status-publish","format-standard","hentry","category-talks","tag-experiment","tag-int-pairing","tag-lanic2","tag-laniga2","tag-muon-spin-relaxation","tag-nonunitary","tag-superconductivity","tag-superconductors","tag-symmetry","tag-theory","tag-time-reversal-symmetry-breaking","tag-triplet-pairing"],"acf":[],"_links":{"self":[{"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/posts\/4574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/users\/134"}],"replies":[{"embeddable":true,"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/comments?post=4574"}],"version-history":[{"count":3,"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/posts\/4574\/revisions"}],"predecessor-version":[{"id":4592,"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/posts\/4574\/revisions\/4592"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/media\/4577"}],"wp:attachment":[{"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/media?parent=4574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/categories?post=4574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/research.kent.ac.uk\/pqm\/wp-json\/wp\/v2\/tags?post=4574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}