{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T18:52:05Z","timestamp":1774551125749,"version":"3.50.1"},"reference-count":5,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"5170","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Science"],"published-print":{"date-parts":[[1994,7,15]]},"abstract":"<jats:p>\n            A cuprate superconductor containing double mercury layers was synthesized with a high-pressure, high-temperature technique. The compound, with chemical formula Hg\n            <jats:sub>2<\/jats:sub>\n            Ba\n            <jats:sub>2<\/jats:sub>\n            -Y\n            <jats:sub>\n              1-\n              <jats:italic>x<\/jats:italic>\n            <\/jats:sub>\n            Ca\n            <jats:sub>\n              <jats:italic>x<\/jats:italic>\n            <\/jats:sub>\n            Cu\n            <jats:sub>2<\/jats:sub>\n            O\n            <jats:sub>8-\u03b4<\/jats:sub>\n            , contains a double HgO layer with structure similar to that of rock salt. The prototype compound Hg\n            <jats:sub>2<\/jats:sub>\n            Ba\n            <jats:sub>2<\/jats:sub>\n            YCu\n            <jats:sub>2<\/jats:sub>\n            O\n            <jats:sub>8-\u03b4<\/jats:sub>\n            is an insulator. Superconductivity is induced in the system by partially replacing yttrium with calcium.\n          <\/jats:p>","DOI":"10.1126\/science.265.5170.380","type":"journal-article","created":{"date-parts":[[2006,10,6]],"date-time":"2006-10-06T00:01:25Z","timestamp":1160092885000},"page":"380-383","source":"Crossref","is-referenced-by-count":45,"title":["Synthesis and Properties of a Cuprate Superconductor Containing Double Mercury-Oxygen Layers"],"prefix":"10.1126","volume":"265","author":[{"given":"P. G.","family":"Radaelli","sequence":"first","affiliation":[{"name":"Laboratoire de Cristallographie, CNRS\/UJF, BP 166,38042 Grenoble Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Perroux","sequence":"additional","affiliation":[{"name":"Laboratoire de Cristallographie, CNRS\/UJF, BP 166,38042 Grenoble Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M.","family":"Marezio","sequence":"additional","affiliation":[{"name":"Laboratoire de Cristallographie, CNRS\/UJF, BP 166, 38042 Grenoble Cedex 09, France, and AT&amp; T Bell Laboratories, Murray Hill, NJ 07974, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"de Brion","sequence":"additional","affiliation":[{"name":"Centre de Recherche sur les Tr\u00e8s Basses T\u00e8mperatures, CNRS\/UJF, BP 166, 38042 Grenoble Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. L.","family":"Tholence","sequence":"additional","affiliation":[{"name":"Centre de Recherche sur les Tr\u00e8s Basses T\u00e8mperatures, CNRS\/UJF, BP 166, 38042 Grenoble Cedex 09, France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Q.","family":"Huang","sequence":"additional","affiliation":[{"name":"National Institute of Standards and Technology, Reactor Division, Gaithersburg, MD 20899, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Santoro","sequence":"additional","affiliation":[{"name":"National Institute of Standards and Technology, Reactor Division, Gaithersburg, MD 20899, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"221","reference":[{"key":"e_1_2_1_1_1","unstructured":"Larson A. C. 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