{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T08:14:17Z","timestamp":1788336857918,"version":"build-2803163510"},"reference-count":50,"publisher":"IOP Publishing","issue":"4","license":[{"start":{"date-parts":[[2017,9,8]],"date-time":"2017-09-08T00:00:00Z","timestamp":1504828800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2017,9,8]],"date-time":"2017-09-08T00:00:00Z","timestamp":1504828800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"funder":[{"DOI":"10.13039\/501100003150","name":"Fonds Qu\u00e9b\u00e9cois de la Recherche sur la Nature et les Technologies","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100003150","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100002790","name":"Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100002790","id-type":"DOI","asserted-by":"crossref"}]},{"name":"National Key Scientific Research Projects of China","award":["2015CB921502"],"award-info":[{"award-number":["2015CB921502"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["51331002"],"award-info":[{"award-number":["51331002"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100004543","name":"China Scholarship Council","doi-asserted-by":"crossref","award":["201506460039"],"award-info":[{"award-number":["201506460039"]}],"id":[{"id":"10.13039\/501100004543","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["2D Mater."],"published-print":{"date-parts":[[2017,12,1]]},"abstract":"Abstract<\/jats:title>\n \n Recent experiments reported excellent transport properties of two-dimensional (2D) van der Waals (vdW) heterostructures made of atomically thin InSe layers encapsulated by two\n h<\/jats:italic>\n BN capping layers (ISBN). The carrier mobility of the ISBN films exceeded\n \n \n \n <\/jats:tex-math>\n \n \n \n \u03bc<\/mml:mi>\n \u223c<\/mml:mo>\n \n 1.2<\/mml:mn>\n \u00d7<\/mml:mo>\n \n \n \n 10<\/mml:mn>\n <\/mml:mrow>\n \n 4<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n \u2009<\/mml:mtext>\n \n c<\/mml:mi>\n \n \n \n m<\/mml:mi>\n <\/mml:mrow>\n \n 2<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n \u2009<\/mml:mtext>\n \n \n \n V<\/mml:mi>\n <\/mml:mrow>\n \n \u2212<\/mml:mo>\n 1<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n \u2009<\/mml:mtext>\n \n \n \n s<\/mml:mi>\n <\/mml:mrow>\n \n \u2212<\/mml:mo>\n 1<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n <\/mml:mrow>\n <\/mml:mrow>\n <\/mml:mstyle>\n <\/mml:math>\n <\/jats:inline-formula>\n at low temperature, much higher than that of pristine InSe films. It has been puzzling why the relatively inert\n h<\/jats:italic>\n BN capping layer could so drastically enhance mobility of the ISBN composite. Using a state-of-the-art first principles method, we have calculated phonon limited carrier mobility of 18 different ISBN films and 6 pristine InSe films with different thicknesses, the largest system containing 2212 atoms. The\n h<\/jats:italic>\n BN capping layer significantly alters the elastic stiffness coefficient as compared with pure InSe\u2014thus the acoustic phonons in the ISBN composite\u2014giving rise to the observed large mobility of ISBN films. Of the 18 calculated ISBN films, the ones with no strain at the\n h<\/jats:italic>\n BN\/InSe interface possess the highest electron mobility, reaching\n \n \n \n <\/jats:tex-math>\n \n \n 4340<\/mml:mn>\n \u00a0<\/mml:mtext>\n \n c<\/mml:mi>\n \n \n \n m<\/mml:mi>\n <\/mml:mrow>\n 2<\/mml:mn>\n <\/mml:msup>\n <\/mml:mstyle>\n \u00a0<\/mml:mtext>\n \n \n V<\/mml:mi>\n \n \u2212<\/mml:mo>\n 1<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n \u00a0<\/mml:mtext>\n \n \n s<\/mml:mi>\n \n \u2212<\/mml:mo>\n 1<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n <\/mml:mrow>\n <\/mml:mstyle>\n <\/mml:math>\n <\/jats:inline-formula>\n at room temperature, which could easily go over\n \n \n \n <\/jats:tex-math>\n \n \n \n \n \n 10<\/mml:mn>\n <\/mml:mrow>\n 4<\/mml:mn>\n <\/mml:msup>\n <\/mml:mstyle>\n \u00a0<\/mml:mtext>\n \n c<\/mml:mi>\n \n \n m<\/mml:mi>\n 2<\/mml:mn>\n <\/mml:msup>\n <\/mml:mstyle>\n \u00a0<\/mml:mtext>\n \n \n V<\/mml:mi>\n \n \u2212<\/mml:mo>\n 1<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n \u00a0<\/mml:mtext>\n \n \n s<\/mml:mi>\n \n \u2212<\/mml:mo>\n 1<\/mml:mn>\n <\/mml:mrow>\n <\/mml:msup>\n <\/mml:mstyle>\n <\/mml:mrow>\n <\/mml:mstyle>\n <\/mml:math>\n <\/jats:inline-formula>\n at low temperatures. We conclude that the mechanical properties of the composite 2D vdW ISBN material play the crucial role for inducing the large carrier mobility, a principle that could be applied to many other 2D vdW heterostructures.\n <\/jats:p>","DOI":"10.1088\/2053-1583\/aa8763","type":"journal-article","created":{"date-parts":[[2017,8,21]],"date-time":"2017-08-21T14:20:58Z","timestamp":1503325258000},"page":"045014","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":26,"title":["Calculated carrier mobility of h-BN\/\n \u03b3<\/i>\n -InSe\/h-BN van der Waals heterostructures"],"prefix":"10.1088","volume":"4","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4801-4746","authenticated-orcid":false,"given":"P","family":"Kang","sequence":"first","affiliation":[{"name":"University of Science and Technology Beijing"},{"name":"McGill University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V","family":"Michaud-Rioux","sequence":"additional","affiliation":[{"name":"McGill University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"X-H","family":"Kong","sequence":"additional","affiliation":[{"name":"McGill University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G-H","family":"Yu","sequence":"additional","affiliation":[{"name":"University of Science and Technology Beijing"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H","family":"Guo","sequence":"additional","affiliation":[{"name":"McGill University"},{"name":"Shenzhen University"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2017,9,8]]},"reference":[{"key":"tdmaa8763bib001","doi-asserted-by":"publisher","first-page":"437","DOI":"10.1103\/RevModPhys.54.437","type":"journal-article","volume":"54","author":"Ando","year":"1982","journal-title":"Rev. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2017-07-15","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2017-08-21","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2017-09-08","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}