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[求助]
求教,关于使用MS建石墨烯超胞模型,然后导入vasp中运算
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建立石墨烯超4X4胞模型后,点击castep的计算,然后save,找到cell文件,cell文件为何出现了96组坐标,应该是32个才对啊?是建模出现问题了吗? 建模步骤如下: 基本是按照这个帖子:http://muchong.com/bbs/viewthread.php?tid=3191417&page=1来的: 1、打开material studio,新建一个工程,导入石墨graphite.msi 2、build->make p1 3、删除一层原子 4、将所有的原子移到z坐标为0处 5、构建supercell(4X4) 6、cleave surface:build->surface->cleave surface,(h,k,l)改为(0,0,-1) 7、添加15埃真空层 求教 cell文件内容如下: %BLOCK LATTICE_CART 2.130422493309718 -1.230000000000000 0.000000000000000 0.000000000000000 2.459999999999999 0.000000000000000 0.000000000000000 0.000000000000000 15.000000000000000 %ENDBLOCK LATTICE_CART %BLOCK POSITIONS_FRAC C -0.3333333333333333 0.3333333333333333 0.0000000000000000 C 0.3333333333333333 -0.3333333333333333 0.0000000000000000 %ENDBLOCK POSITIONS_FRAC %BLOCK KPOINTS_LIST -0.5000000000000000 -0.5000000000000000 0.2500000000000000 0.020833333333333 -0.5000000000000000 0.4166666666666667 0.2500000000000000 0.083333333333333 -0.5000000000000000 0.3333333333333333 0.2500000000000000 0.083333333333333 -0.5000000000000000 0.2499999999999999 0.2500000000000000 0.041666666666667 0.4166666666666667 0.4166666666666667 0.2500000000000000 0.041666666666667 0.4166666666666667 0.3333333333333333 0.2500000000000000 0.083333333333333 0.4166666666666667 0.0000000000000000 0.2500000000000000 0.041666666666667 0.4166666666666667 -0.0833333333333334 0.2500000000000000 0.083333333333333 0.4166666666666667 -0.1666666666666667 0.2500000000000000 0.083333333333333 0.3333333333333333 0.3333333333333333 0.2500000000000000 0.013888888888889 0.3333333333333333 0.0000000000000000 0.2500000000000000 0.041666666666667 0.3333333333333333 -0.0833333333333334 0.2500000000000000 0.083333333333333 0.3333333333333333 -0.1666666666666667 0.2500000000000000 0.041666666666667 0.2499999999999999 0.0000000000000000 0.2500000000000000 0.041666666666667 0.2499999999999999 -0.0833333333333334 0.2500000000000000 0.083333333333333 0.1666666666666667 0.0000000000000000 0.2500000000000000 0.041666666666667 0.1666666666666667 -0.0833333333333334 0.2500000000000000 0.041666666666667 0.0833333333333333 0.0000000000000000 0.2500000000000000 0.041666666666667 0.0000000000000000 0.0000000000000000 0.2500000000000000 0.006944444444444 %ENDBLOCK KPOINTS_LIST %BLOCK SYMMETRY_OPS 1.000000000000000 -0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 0.866025403784439 0.000000000000000 -0.866025403784438 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 -0.866025403784439 0.000000000000000 0.866025403784439 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 -0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 -0.866025403784439 0.000000000000000 0.866025403784438 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 0.866025403784439 0.000000000000000 -0.866025403784439 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 0.866025403784439 0.000000000000000 0.866025403784438 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 -0.866025403784439 0.000000000000000 -0.866025403784439 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000001 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 -0.866025403784439 0.000000000000000 -0.866025403784438 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 0.866025403784439 0.000000000000000 0.866025403784439 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 -0.000000000000001 0.000000000000000 -0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 -0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 -0.866025403784439 0.000000000000000 0.866025403784438 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 0.866025403784439 0.000000000000000 -0.866025403784439 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 -0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 0.866025403784439 0.000000000000000 -0.866025403784438 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 -0.866025403784439 0.000000000000000 0.866025403784439 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 -0.866025403784439 0.000000000000000 -0.866025403784438 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -0.500000000000000 0.866025403784439 0.000000000000000 0.866025403784439 0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 -0.000000000000001 0.000000000000000 -0.000000000000000 -1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 0.866025403784439 0.000000000000000 0.866025403784438 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 0.500000000000000 -0.866025403784439 0.000000000000000 -0.866025403784439 -0.500000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 -1.000000000000000 0.000000000000001 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 1.000000000000000 0.000000000000000 0.000000000000000 0.000000000000000 %ENDBLOCK SYMMETRY_OPS FIX_COM : false %BLOCK IONIC_CONSTRAINTS %ENDBLOCK IONIC_CONSTRAINTS %BLOCK SPECIES_MASS C 12.0109996796 %ENDBLOCK SPECIES_MASS %BLOCK SPECIES_POT C C_00PBE.usp %ENDBLOCK SPECIES_POT %BLOCK SPECIES_LCAO_STATES C 2 %ENDBLOCK SPECIES_LCAO_STATES QQ图片20130927115259.jpg QQ图片20130927115406.jpg 问题貌似解决了,在save files的时候,会出现图3所示的那个对话框,选择No,则可以显示出32个C原子坐标,下面贴出cell: %BLOCK LATTICE_CART 8.521689973238873 4.920000000000002 0.000000000000000 -0.000000000000001 9.839999999999993 0.000000000000000 0.000000000000000 0.000000000000000 15.000000000000000 %ENDBLOCK LATTICE_CART %BLOCK POSITIONS_FRAC C 0.0000000000000002 -0.0000000000000000 0.0000000000000000 C 0.9166667031738910 0.1666665936522201 0.0000000000000000 C 0.7500000000000000 0.2500000000000001 0.0000000000000000 C 0.6666667031738911 0.4166665936522200 0.0000000000000000 C 0.5000000000000001 0.5000000000000000 0.0000000000000000 C 0.4166667031738910 0.6666665936522200 0.0000000000000000 C 0.2500000000000000 0.7500000000000002 0.0000000000000000 C 0.1666667031738910 0.9166665936522190 0.0000000000000000 C 0.2500000000000000 -0.0000000000000000 0.0000000000000000 C 0.1666667031738910 0.1666665936522200 0.0000000000000000 C 0.0000000000000002 0.2500000000000000 0.0000000000000000 C 0.9166667031738910 0.4166665936522200 0.0000000000000000 C 0.7500000000000000 0.5000000000000001 0.0000000000000000 C 0.6666667031738910 0.6666665936522201 0.0000000000000000 C 0.5000000000000000 0.7500000000000002 0.0000000000000000 C 0.4166667031738910 0.9166665936522191 0.0000000000000000 C 0.5000000000000000 0.0000000000000000 0.0000000000000000 C 0.4166667031738910 0.1666665936522201 0.0000000000000000 C 0.2500000000000001 0.2500000000000000 0.0000000000000000 C 0.1666667031738910 0.4166665936522200 0.0000000000000000 C 0.0000000000000002 0.5000000000000000 0.0000000000000000 C 0.9166667031738910 0.6666665936522200 0.0000000000000000 C 0.7500000000000000 0.7500000000000002 0.0000000000000000 C 0.6666667031738910 0.9166665936522191 0.0000000000000000 C 0.7500000000000001 0.0000000000000000 0.0000000000000000 C 0.6666667031738910 0.1666665936522200 0.0000000000000000 C 0.5000000000000000 0.2500000000000001 0.0000000000000000 C 0.4166667031738910 0.4166665936522200 0.0000000000000000 C 0.2500000000000000 0.5000000000000001 0.0000000000000000 C 0.1666667031738910 0.6666665936522201 0.0000000000000000 C 0.0000000000000003 0.7500000000000001 0.0000000000000000 C 0.9166667031738911 0.9166665936522191 0.0000000000000000 %ENDBLOCK POSITIONS_FRAC %BLOCK KPOINTS_LIST 0.3333333333333333 0.3333333333333333 0.2500000000000000 0.111111111111111 0.3333333333333333 0.3333333333333333 -0.2500000000000000 0.111111111111111 0.3333333333333333 0.0000000000000000 0.2500000000000000 0.111111111111111 0.3333333333333333 0.0000000000000000 -0.2500000000000000 0.111111111111111 0.3333333333333333 -0.3333333333333333 0.2500000000000000 0.111111111111111 0.3333333333333333 -0.3333333333333333 -0.2500000000000000 0.111111111111111 0.0000000000000000 0.3333333333333333 0.2500000000000000 0.111111111111111 0.0000000000000000 0.3333333333333333 -0.2500000000000000 0.111111111111111 0.0000000000000000 0.0000000000000000 0.2500000000000000 0.111111111111111 %ENDBLOCK KPOINTS_LIST %BLOCK CELL_CONSTRAINTS 1 2 3 4 5 6 %ENDBLOCK CELL_CONSTRAINTS FIX_COM : false %BLOCK IONIC_CONSTRAINTS %ENDBLOCK IONIC_CONSTRAINTS %BLOCK SPECIES_MASS C 12.0109996796 %ENDBLOCK SPECIES_MASS %BLOCK SPECIES_POT C C_00PBE.usp 图3 [ Last edited by 前田庆次 on 2013-9-27 at 16:15 ] |
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2楼2013-09-27 19:15:03

3楼2013-09-27 19:21:52
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