{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T13:19:31Z","timestamp":1788355171751,"version":"build-2803163510"},"reference-count":29,"publisher":"IOP Publishing","issue":"35","license":[{"start":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:00:00Z","timestamp":1788307200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T00:00:00Z","timestamp":1788307200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/100006817","name":"University of Wisconsin - Milwaukee","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100006817","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/100006224","name":"Argonne National Laboratory","doi-asserted-by":"crossref","award":["DE-AC02-06CH11357"],"award-info":[{"award-number":["DE-AC02-06CH11357"]}],"id":[{"id":"10.13039\/100006224","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001804","name":"Canada Research Chairs","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100001804","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Phys.: Condens. Matter"],"published-print":{"date-parts":[[2026,9,4]]},"abstract":"Abstract<\/jats:title>\n \n We report high-resolution synchrotron x-ray diffraction and x-ray resonant magnetic scattering (XRMS) studies of the low-temperature crystal and magnetic structures of DyCuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n , a member of the\n RE<\/jats:italic>\n CuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n family exhibiting a resistivity minimum above the antiferromagnetic (AFM) transition temperature. Synchrotron diffraction measurements reveal that DyCuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n preserves tetragonal symmetry down to low temperature within the experimental resolution, although pronounced anomalies in both lattice parameters\n \n \n \n <\/jats:tex-math>\n \n \n a<\/mml:mi>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n and\n \n \n \n <\/jats:tex-math>\n \n \n c<\/mml:mi>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n are observed near the AFM transition temperature,\n \n \n \n <\/jats:tex-math>\n \n \n \n T<\/mml:mi>\n \n \n N<\/mml:mi>\n <\/mml:mrow>\n <\/mml:mrow>\n <\/mml:msub>\n \u2248<\/mml:mo>\n 7<\/mml:mn>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n K, indicating strong magnetoelastic coupling. XRMS measurements at the Dy\n \n \n \n <\/jats:tex-math>\n \n \n \n L<\/mml:mi>\n 3<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n edge establish commensurate AFM ordering below\n \n \n \n <\/jats:tex-math>\n \n \n \n T<\/mml:mi>\n \n \n N<\/mml:mi>\n <\/mml:mrow>\n <\/mml:mrow>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n with AFM Bragg peaks at\n \n q<\/jats:bold>\n <\/jats:italic>\n = (0, 0, 0.5). Representation analysis and calculations of the AFM Bragg peak intensities identify the magnetic structure as the\n \n \n \n <\/jats:tex-math>\n \n \n \n \u0393<\/mml:mi>\n \n 10<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n representation, consisting of in-plane Dy moments stacked along the\n \n c<\/jats:bold>\n <\/jats:italic>\n axis in a\n \n \n \n <\/jats:tex-math>\n \n \n +<\/mml:mo>\n +<\/mml:mo>\n \u2212<\/mml:mo>\n \u2212<\/mml:mo>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n sequence. The magnetic structure is therefore identical to that previously reported for SmCuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n . Comparison among DyCuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n , SmCuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n , and GdCuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n suggests that in-plane AFM order and the associated magnetic frustration on the tetragonal lattice are closely connected to the emergence of the resistivity minimum in the\n RE<\/jats:italic>\n CuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n family. At the same time, the enhanced lattice response and stronger magnetic-field sensitivity observed in DyCuAs\n \n \n \n <\/jats:tex-math>\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>\n <\/jats:inline-formula>\n imply that magnetoelastic and spin\u2013orbit interactions additionally play important roles in determining the robustness of this anomalous transport behavior.\n <\/jats:p>","DOI":"10.1088\/1361-648x\/ae9dd6","type":"journal-article","created":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T22:54:22Z","timestamp":1787612062000},"page":"355801","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Antiferromagnetic order and lattice response in DyCuAs\n \n \n \n \n 2<\/mml:mn>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math>"],"prefix":"10.1088","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7676-454X","authenticated-orcid":true,"given":"M G","family":"Kim","sequence":"first","affiliation":[{"name":"University of Wisconsin-Milwaukee"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9641-2947","authenticated-orcid":true,"given":"J-W","family":"Kim","sequence":"additional","affiliation":[{"name":"Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P","family":"Ryan","sequence":"additional","affiliation":[{"name":"Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D","family":"Evans","sequence":"additional","affiliation":[{"name":"Simon Fraser University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5120-1492","authenticated-orcid":false,"given":"E D","family":"Mun","sequence":"additional","affiliation":[{"name":"Simon Fraser University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2026,9,2]]},"reference":[{"key":"cmae9dd6bib1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.91.036603","type":"journal-article","volume":"91","author":"Sampathkumaran","year":"2003","journal-title":"Phys. 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Published by IOP Publishing Ltd","name":"copyright_information","label":"Copyright Information"},{"value":"2026-06-03","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-08-24","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2026-09-02","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}