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Phys. Mater."],"published-print":{"date-parts":[[2026,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    We report the synthesis and physical properties of a hexagonal boride YRu\n                    <jats:sub>3<\/jats:sub>\n                    B\n                    <jats:sub>2<\/jats:sub>\n                    , which was previously predicted to show superconductivity [N.K. Nepal, L.-L. Wang, arXiv:2409.18441 (2024)]. A polycrystalline sample was synthesized by arc-melting a pre-reacted YB\n                    <jats:sub>2<\/jats:sub>\n                    and metallic Ru. Phase and elemental composition were characterized by means of powder x-ray diffraction and scanning electron microcopy. Our resistivity and heat capacity measurements indicate that YRu\n                    <jats:sub>3<\/jats:sub>\n                    B\n                    <jats:sub>2<\/jats:sub>\n                    is a weakly coupled superconductor, with a critical temperature\n                    <jats:italic>T<\/jats:italic>\n                    <jats:sub>c<\/jats:sub>\n                    = 0.63 K and an upper critical field\n                    <jats:inline-formula>\n                      <jats:tex-math>\n                        \n                      <\/jats:tex-math>\n                      <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                          <mml:mrow>\n                            <mml:msub>\n                              <mml:mi>\u03bc<\/mml:mi>\n                              <mml:mn>0<\/mml:mn>\n                            <\/mml:msub>\n                          <\/mml:mrow>\n                          <mml:mrow>\n                            <mml:msub>\n                              <mml:mi>H<\/mml:mi>\n                              <mml:mrow>\n                                <mml:mrow>\n                                  <mml:mtext>c<\/mml:mtext>\n                                <\/mml:mrow>\n                                <mml:mn>2<\/mml:mn>\n                              <\/mml:mrow>\n                            <\/mml:msub>\n                          <\/mml:mrow>\n                          <mml:mrow>\n                            <mml:mo>(<\/mml:mo>\n                            <mml:mn>0<\/mml:mn>\n                            <mml:mo>)<\/mml:mo>\n                          <\/mml:mrow>\n                          <mml:mo>=<\/mml:mo>\n                          <mml:mn>0.11<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:math>\n                    <\/jats:inline-formula>\n                    T. Isovalent substitution of Y with 5 at% and 10 at% of Sc resulted in a slight enhancement of the critical temperature up to ca. 0.8 K. Density functional theory calculations together with chemical-bonding analysis, reveal that the electronic states at and near the Fermi energy level are dominated by the Ru kagome sublattice.\n                  <\/jats:p>","DOI":"10.1088\/2515-7639\/ae6a72","type":"journal-article","created":{"date-parts":[[2026,5,7]],"date-time":"2026-05-07T22:58:11Z","timestamp":1778194691000},"page":"025013","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["YRu\n                    <sub>3<\/sub>\n                    B\n                    <sub>2<\/sub>\n                    \u2014a kagome lattice superconductor"],"prefix":"10.1088","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9083-8066","authenticated-orcid":true,"given":"Micha\u0142 J","family":"Winiarski","sequence":"first","affiliation":[{"name":"Gdansk University of Technology"},{"name":"Advanced Materials Center, Gdansk University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dominik","family":"Walczak","sequence":"additional","affiliation":[{"name":"Gdansk University of Technology"},{"name":"Advanced Materials Center, Gdansk University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5463-2335","authenticated-orcid":true,"given":"Szymon","family":"Kr\u00f3lak","sequence":"additional","affiliation":[{"name":"Gdansk University of Technology"},{"name":"Advanced Materials Center, Gdansk University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Duygu","family":"Yazici","sequence":"additional","affiliation":[{"name":"Gdansk University of Technology"},{"name":"The Scientific and Technological Research Council of Turkey"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert J","family":"Cava","sequence":"additional","affiliation":[{"name":"Princeton University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7089-4631","authenticated-orcid":true,"given":"Tomasz","family":"Klimczuk","sequence":"additional","affiliation":[{"name":"Gdansk University of Technology"},{"name":"Advanced Materials Center, Gdansk University of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2026,5,20]]},"reference":[{"key":"jpmaterae6a72bib1","doi-asserted-by":"publisher","first-page":"647","DOI":"10.1038\/s41586-022-05516-0","type":"journal-article","article-title":"Topological kagome magnets and superconductors","volume":"612","author":"Yin","year":"2022","journal-title":"Nature"},{"key":"jpmaterae6a72bib2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevB.80.113102","type":"journal-article","article-title":"Topological insulator on the kagome lattice","volume":"80","author":"Guo","year":"2009","journal-title":"Phys. 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Published by IOP Publishing Ltd","name":"copyright_information","label":"Copyright Information"},{"value":"2025-12-18","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-05-07","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-05-20","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}