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<p>Hi all, </p>
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<p>I have recently become interested in how the size of the unit cell in phonon calculations effects the results produced by the calculation (Raman spectra in particular). It seems that increasing the number of atoms
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explicitly </span>simulated should also increase the number of normal modes calcuated? </p>
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<p>Does anyone know if using the primitive cell will produce more or less accurate results than a larger supercell?</p>
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<p>Thanks</p>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px"><span style="color:rgb(34,34,34); font-family:arial,sans-serif; font-size:12.8px">-- </span><br>
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<div style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:16px"><span style="color:rgb(34,34,34); font-size:9pt; font-family:"Times New Roman",serif">Charlie Ruffman | <span style="color:rgb(31,78,121)">BSc<br>
</span></span><span style="color:rgb(31,78,121); font-family:"Times New Roman",serif; font-size:12px">BSc(Hons) </span><span style="color:rgb(34,34,34); font-size:9pt; font-family:"Times New Roman",serif"><span style="color:rgb(31,78,121)">Student<br>
</span><br>
<span style="color:rgb(31,78,121)">Chemistry Department<br>
University of Otago</span> <span style="color:rgb(59,56,56)"><br>
</span><span style="color:rgb(31,78,121)">Tel</span> 64 3 479 7930<br>
<span style="color:rgb(31,78,121)">PO Box 56, Dunedin 9054</span><br>
<span style="color:rgb(31,78,121)">New Zealand</span> <br>
<br>
<span style="color:rgb(31,78,121)">Website</span> </span><font color="#0000ff" face="Times New Roman, serif" style="font-size:12.8px"><span style="font-size:12px"><u><a href="http://neon.otago.ac.nz/research/alg/" target="_blank" id="LPNoLP" style="color:rgb(17,85,204)">http://neon.otago.ac.<wbr>nz/research/alg/</a></u></span></font></div>
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