Vasarely painting at the nanoscale on sapphire crystals  

作　　者：Caroline Matringe Elsa Thune Rémy Cavalotti Ahmad Fakih Stephan Amaud Nils Blanc Nathalie Boudet Alessandro Coati Yves Garreau David Babonneau René Guinebretière 

机构地区：[1]IRCER,UMR CNRS 7315,Centre Europeen de la Ceramique,Universite de Limoges,12 rue Atlantis,87068 Limoges,France [2]Institut Neel UPR CNRS 2940,CRG D2AM Beamline,ESRF,Universite Grenoble Alpes,38042 Grenoble,France [3]SixS Beamline,Synchrotron SOLEIL,BP48,91192 Gifsur Yvette,France [4]Laboratoire Materiaux et Phenomenes Quantiques,UMR CNRS 7162,Universite de Paris,75013 Paris,France [5]Institut Pprime,Departement Physique et Mecanique des Materiauxf UPR CNRS 3346,Universite de Poitiers,SP2MI,TSA 41123,86073 Poitiers Cedex 9,France

出　　处：《Nano Research》2020年第9期2512-2516,共5页纳米研究（英文版）

基　　金：This work has been carried out partially within the QMAX Project No.ANR-09-NANO-031 funded by the French National Agency(ANR)in the frame of its program in Nanosciences,Nanotechnologies and Nanosystems(P3N2009);We acknowledge the synchrotron SOLEIL and the ESRF for provision of beamtime at the synchrotron radiation facilities;The authors express their gratitude towards the Limousin Region for financial support of the PhD salaries of A.F.and CM..

摘　　要：We demonstrate that convenient thermal treatment of a specific sapphire vicinal surface can induce the formation of a fully two-dimensional(2D)ordered surface made of a periodic assembly of(006)facets.The simiarity between the resuting surface topography and pattemns represented in the hexagon series"of paintings by Vasarely is really striking!We thus propose to call these surfaces as"nanoscaled Vasarely surfaces".We also show that the self-organization process,which is driven by the minimization of the free energy of a closed system,results in a quasi-linear isothermal growth of the facets'surface area over time.

关 键 词：nanoscaled Vasarely surfaces two-dimensional(2D)-self-organization sapphire vicinal surfaces 

分 类 号：O17[理学—数学]