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Seek help for space groups in 2 dimensions Bravais lattice

by harmonyU
Tags: bravais, dimensions, groups, lattice, seek, space
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harmonyU
#1
Feb16-13, 11:52 PM
P: 4
Dear experts,
I'm not familiar with crystal structure theory. I'm seek expertise to figure out space groups in 2 dimensions Bravais lattice of the attached structures. In the figure, red and greens dots represent different atoms. I'll greatly appreciate your help.

Struture 1
http://www.physicsforums.com/attachm...1&d=1361080231
structure 2
http://www.physicsforums.com/attachm...1&d=1361080249
structure 2
http://www.physicsforums.com/attachm...1&d=1361080249
Attached Thumbnails
Structure 1.jpg   Structure 2.jpg   Structure 3.png  
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Dr Transport
#2
Feb17-13, 03:34 PM
Sci Advisor
PF Gold
P: 1,475
do you see any symmetry planes????
harmonyU
#3
Feb17-13, 09:22 PM
P: 4
Quote Quote by Dr Transport View Post
do you see any symmetry planes????
Thank you men. I'm not familiar with space group in 2D bravais lattice. Can you give me your expertise answer?


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