1. Dec 22, 2014 #1

   Abigale

   

   Do someone knows what this dot "." means?
   I just know this notation [001].
   
   Thank u
   Abigale

    

   Abigale, Dec 22, 2014
2. 
   Phys.org - latest science and technology news stories on Phys.org

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3. Dec 22, 2014 #2

   DrDu

   

   Science Advisor

   Maybe they mean ##[00\bar{1}]##?

    

   DrDu, Dec 22, 2014
4. Dec 23, 2014 #3

   Useful nucleus

   

   This is an old fashioned way to describe directions in hexagonal systems using 3 coordinates. See the first few pages here:
   
   http://www.public.asu.edu/~rosebudx/Chap4_99_131.pdf
   
   In particular page 101.

    

   Last edited: Dec 23, 2014

   Useful nucleus, Dec 23, 2014

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