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Topic: axis of symmetry of a crystal structure  (Read 4817 times)

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Offline picatshou

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axis of symmetry of a crystal structure
« on: May 25, 2011, 06:45:53 AM »
hi,what is the biggest order of the axis of symmetry for AlP structure ? thanks alot for anyone who can help me :)
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Offline AWK

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Re: axis of symmetry of a crystal structure
« Reply #1 on: May 25, 2011, 09:54:23 AM »
AlP shows zinc blende lattice at normal pressure
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Offline picatshou

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Re: axis of symmetry of a crystal structure
« Reply #2 on: May 25, 2011, 11:57:01 AM »
hello,I need to know the biggest order of the axis of symmetry in this structure , can you help me please ? because I have problems i identifying the order of axix , thanks a lot :)
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Offline picatshou

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Re: axis of symmetry of a crystal structure
« Reply #3 on: May 25, 2011, 05:00:38 PM »
Quote from: picatshou on May 25, 2011, 11:57:01 AM
hello,I need to know the biggest order of the axis of symmetry in this structure , can you help me please ? because I have problems i identifying the order of axix , thanks a lot :) help me pleaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaase friends
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Offline AWK

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Re: axis of symmetry of a crystal structure
« Reply #4 on: May 26, 2011, 01:08:52 AM »
Look at space group of zinc blende - it contains information you need
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Offline picatshou

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Re: axis of symmetry of a crystal structure
« Reply #5 on: May 26, 2011, 11:21:13 AM »
hi AWK , i'm sorry but i couldn't found the information concerning axis can you help me friend please ? thank you so much :)
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Offline picatshou

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Re: axis of symmetry of a crystal structure
« Reply #6 on: May 27, 2011, 06:17:47 AM »
who can help me please thanks :)
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Offline AWK

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Re: axis of symmetry of a crystal structure
« Reply #7 on: May 27, 2011, 07:46:22 AM »
From wikipedia:
The space group of this structure is called F43m
Symbol of space group contains all information you nedded - these two numbers inform you about the most important axes.

Which show
Quote
the biggest order
- 4 or 3 ?
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Offline picatshou

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Re: axis of symmetry of a crystal structure
« Reply #8 on: May 27, 2011, 07:58:31 AM »
so that is it I search to know if the biggest order of axis in the structure of AlP is 3 or 4
and thank you very much for help AWK :)
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Offline picatshou

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Re: axis of symmetry of a crystal structure
« Reply #9 on: May 27, 2011, 01:35:07 PM »
  :'( help me friends  :-[
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Offline AWK

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Re: axis of symmetry of a crystal structure
« Reply #10 on: May 30, 2011, 02:30:21 AM »
Which number is bigger?
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