Supplementary Data: Heat transport in pristine and polycrystalline single-layer hexagonal boron nitride

<p>This is part of the supplementary material for the manuscript ``Heat transport in pristine and polycrystalline single-layer hexagonal boron nitride&#39;&#39; by Haikuan Dong, Petri Hirvonen, Zheyong Fan, and Tapio Ala-Nissila. Phys. Chem. Chem. Phys.&nbsp;<a href="http://dx.doi.org/10.1039/C8CP05159C">http://dx.doi.org/10.1039/C8CP05159C</a>&nbsp;[https://arxiv.org/abs/1806.07936]</p> <p>There are 6*8=48 files, each corresponding to a flat polycrystalline h-BN sample before molecular dynamics relaxation.</p> <p>In each file, the first row gives the lengths Lx and Ly (Lx=Ly) in the x and y directions, which will be used to set up the box in molecular dynamics simulations.</p> <p>Starting from the second row, the first column gives the atom types (0 for B and 1 for N), the second column gives the x coordinates and the third column gives the y coordinates.</p> <p>The number of atoms equals the number of rows in the file minus 1.</p> <p>The files are named as poly-a-b.xy, where &quot;a&quot; roughly corresponds to the linear size Lx and &quot;b&quot; labels the 8 samples for each size.</p> <p>The grain size d and the linear size Lx are related by d=Lx/4, so the 6 grain sizes are 10, 12.5, 17.5, 25, 37.5, and 50 nm.</p> <p>&nbsp;</p>