{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T15:27:52Z","timestamp":1786721272286,"version":"build-2736575974"},"reference-count":26,"publisher":"International Union of Crystallography (IUCr)","issue":"4","license":[{"start":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T00:00:00Z","timestamp":1781049600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},{"start":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T00:00:00Z","timestamp":1781049600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.iucr.org\/services\/copyrightpolicy.html#TDM"}],"funder":[{"name":"The Quantum Science and Technology - National Science and Technology Major Project","award":["2021ZD0302704"],"award-info":[{"award-number":["2021ZD0302704"]}]},{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["52573261"],"award-info":[{"award-number":["52573261"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["52272268"],"award-info":[{"award-number":["52272268"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr B Struct Sci Cryst Eng Mater","Acta Crystallogr B","Acta Crystallogr B Struct Sci","Acta Cryst B","Acta Cryst B Struct Sci Cryst Eng Mater","Acta Cryst Sect B","Acta Cryst Sect B Struct Sci Cryst Eng Mater","Acta Crystallogr Sect B","Acta Crystallogr Sect B Struct Sci Cryst Eng Mater","Acta Crystallogr Sect B Struct Sci"],"accepted":{"date-parts":[[2026,5,6]]},"published-print":{"date-parts":[[2026,8,1]]},"abstract":"<jats:p>\n                    The Ba\n                    <jats:sub>6<\/jats:sub>\n                    <jats:italic>M<\/jats:italic>\n                    <jats:sub>11<\/jats:sub>\n                    <jats:italic>X<\/jats:italic>\n                    <jats:sub>28<\/jats:sub>\n                    (\n                    <jats:italic>M<\/jats:italic>\n                    = Nb, Ta;\n                    <jats:italic>X<\/jats:italic>\n                    = S, Se) family of natural van der Waals superlattices hosts highly anisotropic superconductivity and exotic two-dimensional electronic behavior. However, the actual stacking sequences of these superconducting superlattices, crucial for property engineering, remains poorly understood. Here we present a detailed microstructural study of Ba\n                    <jats:sub>6<\/jats:sub>\n                    Nb\n                    <jats:sub>11<\/jats:sub>\n                    Se\n                    <jats:sub>28<\/jats:sub>\n                    using aberration-corrected scanning transmission electron microscopy (STEM), powder X-ray diffraction (PXRD) and\n                    <jats:italic>DIFFaX<\/jats:italic>\n                    simulations. We identify intrinsic in-plane translational stacking faults confined to the Ba\n                    <jats:sub>3<\/jats:sub>\n                    NbSe\n                    <jats:sub>5<\/jats:sub>\n                    spacer layers and directly resolve three symmetry-equivalent stacking configurations at the atomic scale. These stacking variants preserve the local coordination environment and occur randomly without correlation between adjacent spacer layers. The stacking disorder leads to characteristic extinction of (10\n                    <jats:italic>l<\/jats:italic>\n                    ) reflections in diffraction, which is quantitatively reproduced by simulations based on a random stacking model. Our results establish in-plane translational stacking disorder as an intrinsic structural feature of Ba\n                    <jats:sub>6<\/jats:sub>\n                    Nb\n                    <jats:sub>11<\/jats:sub>\n                    Se\n                    <jats:sub>28<\/jats:sub>\n                    and highlight the importance of spacer-layer degrees of freedom in layered van der Waals superlattices.\n                  <\/jats:p>","DOI":"10.1107\/s2052520626004737","type":"journal-article","created":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T16:50:30Z","timestamp":1781110230000},"page":"369-374","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Random in-plane translational stacking faults in the van der Waals superlattice Ba\n                    <sub>6<\/sub>\n                    Nb\n                    <sub>11<\/sub>\n                    Se\n                    <sub>28<\/sub>"],"prefix":"10.1107","volume":"82","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0176-872X","authenticated-orcid":true,"given":"Ke","family":"Ma","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05cvf7v30","id-type":"ROR","asserted-by":"publisher"}],"department":["Beijing National Laboratory for Condensed Matter Physics"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-4479-9752","authenticated-orcid":true,"given":"Yingpeng","family":"Yu","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05cvf7v30","id-type":"ROR","asserted-by":"publisher"}],"department":["Beijing National Laboratory for Condensed Matter Physics"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qi","family":"Li","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05cvf7v30","id-type":"ROR","asserted-by":"publisher"}],"department":["Beijing National Laboratory for Condensed Matter Physics"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tianping","family":"Ying","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05cvf7v30","id-type":"ROR","asserted-by":"publisher"}],"department":["Beijing National Laboratory for Condensed Matter Physics"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qinghua","family":"Zhang","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05cvf7v30","id-type":"ROR","asserted-by":"publisher"}],"department":["Beijing National Laboratory for Condensed Matter Physics"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shifeng","family":"Jin","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05cvf7v30","id-type":"ROR","asserted-by":"publisher"}],"department":["Beijing National Laboratory for Condensed Matter Physics"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaolong","family":"Chen","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05cvf7v30","id-type":"ROR","asserted-by":"publisher"}],"department":["Beijing National Laboratory for Condensed Matter Physics"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,6,10]]},"reference":[{"key":"ne5018_bb1","doi-asserted-by":"crossref","first-page":"675","DOI":"10.1016\/0025-5408(93)90111-P","volume":"28","author":"Auriel","year":"1993","journal-title":"Mater. Res. Bull."},{"key":"ne5018_bb9","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1006\/jssc.1999.8158","volume":"147","author":"Cario","year":"1999","journal-title":"J. Solid State Chem."},{"key":"ne5018_bb10","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1016\/0370-1573(90)90058-A","volume":"185","author":"Cummins","year":"1990","journal-title":"Phys. Rep."},{"key":"ne5018_bb12","doi-asserted-by":"crossref","first-page":"526","DOI":"10.1038\/s41586-024-07589-5","volume":"631","author":"Devarakonda","year":"2024","journal-title":"Nature"},{"key":"ne5018_bb13","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1126\/science.aaz6643","volume":"370","author":"Devarakonda","year":"2020","journal-title":"Science"},{"key":"ne5018_bb14","doi-asserted-by":"crossref","first-page":"155115","DOI":"10.1103\/PhysRevB.109.155115","volume":"109","author":"Ding","year":"2024","journal-title":"Phys. Rev. B"},{"key":"ne5018_bb15","doi-asserted-by":"crossref","first-page":"11320","DOI":"10.1063\/1.1522397","volume":"117","author":"Hoogenboom","year":"2002","journal-title":"J. Chem. Phys."},{"key":"ne5018_bb16","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1016\/0043-1648(93)90351-L","volume":"170","author":"Isshiki","year":"1993","journal-title":"Wear"},{"key":"ne5018_bb17","doi-asserted-by":"crossref","unstructured":"Itahashi, Y. M., Nohara, Y., Chazono, M., Matsuoka, H., Arioka, K., Nomoto, T., Kohama, Y., Yanase, Y., Iwasa, Y. & Kobayashi, K. (2025). Nat. Commun. 16, 7022.","DOI":"10.1038\/s41467-025-62297-6"},{"key":"ne5018_bb18","unstructured":"Kim, J. H., Song, Y. J., Rhyee, J. S., Kim, B. S., Park, S. D., Lee, H. J. & Shin, J. W. (2013). Phys. Rev. B 87, 224305."},{"key":"ne5018_bb19","doi-asserted-by":"crossref","unstructured":"Leriche, R. T., Palacio-Morales, A., Campetella, M., Tresca, C., Sasaki, S., Brun, C., Debontridder, F., David, P., Arfaoui, I., \u0160ofranko, O., Samuely, T., Kremer, G., Monney, C., Jaouen, T., Cario, L., Calandra, M. & Cren, T. (2021). Adv. Funct. Mater. 31, 2007706.","DOI":"10.1002\/adfm.202007706"},{"key":"ne5018_bb22","unstructured":"Lin, J. F., Wang, Z. Q., Yan, H. Y, Ma, X. P., Cui, Z. H., Zhang, Y., Lei, Y. X., Liu, J., Li, R., Xi, C. Y., Zhu, Z. W., Zuo, H. K., Liu, Y. Z., Yang, H. X., Xia, T. L., Liu, H. W., Liu, Y. & Wang, J. (2025). arXiv, 2506.16039 [cond-mat.supr-con]."},{"key":"ne5018_bb23","unstructured":"Ma, K., Jin, S., Meng, F., Zhang, Q., Sun, R., Deng, J., Chen, L., Gu, L., Li, G. & Zhang, Z. (2022). Phys. Rev. Mater. 6, 044806."},{"key":"ne5018_bb24","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1016\/S0038-1098(97)80006-3","volume":"101","author":"Nader","year":"1997","journal-title":"Solid State Commun."},{"key":"ne5018_bb25","doi-asserted-by":"crossref","first-page":"530","DOI":"10.1107\/S0108768106013188","volume":"62","author":"Ramesh","year":"2006","journal-title":"Acta Cryst. B"},{"key":"ne5018_bb27","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1016\/0378-4363(80)90203-X","volume":"99","author":"Rouxel","year":"1980","journal-title":"Phys. B+C"},{"key":"ne5018_bb28","doi-asserted-by":"crossref","first-page":"142","DOI":"10.1038\/s41524-025-01641-2","volume":"11","author":"Sarsfield","year":"2025","journal-title":"npj Comput. Mater."},{"key":"ne5018_bb29","doi-asserted-by":"crossref","first-page":"144420","DOI":"10.1103\/PhysRevB.91.144420","volume":"91","author":"Sears","year":"2015","journal-title":"Phys. Rev. B"},{"key":"ne5018_bb30","doi-asserted-by":"crossref","first-page":"46","DOI":"10.1038\/s41699-025-00569-x","volume":"9","author":"Simonian","year":"2025","journal-title":"npj 2D Mater Appl."},{"key":"ne5018_bb31","doi-asserted-by":"crossref","first-page":"1923","DOI":"10.1002\/zaac.201800456","volume":"644","author":"Stahl","year":"2018","journal-title":"Z. Anorg. Allge Chem."},{"key":"ne5018_bb32","doi-asserted-by":"crossref","first-page":"21199","DOI":"10.1021\/acsnano.2c09172","volume":"16","author":"Sutter","year":"2022","journal-title":"ACS Nano"},{"key":"ne5018_bb33","doi-asserted-by":"crossref","first-page":"499","DOI":"10.1098\/rspa.1991.0062","volume":"433","author":"Treacy","year":"1991","journal-title":"Proc. R. Soc. London Ser. A"},{"key":"ne5018_bb34","doi-asserted-by":"crossref","first-page":"592","DOI":"10.1038\/s41565-020-0682-9","volume":"15","author":"Weston","year":"2020","journal-title":"Nat. Nanotechnol."},{"key":"ne5018_bb35","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/0079-6786(95)00007-0","volume":"24","author":"Wiegers","year":"1996","journal-title":"Prog. Solid State Chem."},{"key":"ne5018_bb36","doi-asserted-by":"crossref","first-page":"193","DOI":"10.1080\/00018736900101307","volume":"18","author":"Wilson","year":"1969","journal-title":"Adv. Phys."},{"key":"ne5018_bb40","doi-asserted-by":"crossref","first-page":"4408","DOI":"10.1021\/acs.nanolett.4c00056","volume":"24","author":"Zhou","year":"2024","journal-title":"Nano Lett."}],"container-title":["Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials"],"original-title":[],"link":[{"URL":"https:\/\/journals.iucr.org\/b\/issues\/2026\/04\/00\/ne5018\/ne5018.pdf","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.iucr.org\/b\/issues\/2026\/04\/00\/ne5018\/ne5018.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T14:31:24Z","timestamp":1786717884000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.iucr.org\/paper?S2052520626004737"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,10]]},"references-count":26,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2026,8]]}},"alternative-id":["S2052520626004737"],"URL":"https:\/\/doi.org\/10.1107\/s2052520626004737","relation":{},"ISSN":["2052-5206"],"issn-type":[{"value":"2052-5206","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,10]]},"assertion":[{"value":"Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials","order":0,"name":"journal","label":"Publication","explanation":{"URL":"https:\/\/journals.iucr.org\/b"},"group":{"name":"general","label":"General"}},{"value":"research papers","order":1,"name":"content_type","label":"Content type","explanation":{"URL":"https:\/\/journals.iucr.org\/b\/services\/notesforauthors.html"},"group":{"name":"general","label":"General"}},{"value":"Available","URL":"https:\/\/scripts.iucr.org\/cgi-bin\/citedin?ne5018","order":2,"name":"article_metrics","label":"Article metrics","group":{"name":"general","label":"General"}},{"value":"Yes","order":0,"name":"peer_reviewed","label":"Peer reviewed","group":{"name":"peer_review","label":"Peer review"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review process","group":{"name":"peer_review","label":"Peer review"}},{"value":"21 January 2026","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication history"}},{"value":"6 May 2026","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication history"}},{"value":"10 June 2026","order":2,"name":"published_online","label":"Published online","group":{"name":"publication_history","label":"Publication history"}},{"value":"\u00a9 Ke Ma\n                      et al.","order":0,"name":"copyright","label":"Copyright","explanation":{"URL":"https:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},"group":{"name":"copyright_and_licensing","label":"Copyright and licencing"}},{"value":"IUCr licence to publish","order":1,"name":"license","label":"Licence","explanation":{"URL":"https:\/\/journals.iucr.org\/copyright\/licencetopublish.html"},"group":{"name":"copyright_and_licencing","label":"Copyright and licencing"}}]}}