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    Dear all,<br>
    <br>
    I'm trying to understand how to use D3 code in order to calculate
    the third-order expansion coefficients.<br>
    I ran the example13 provided in PHonon package, however I can't
    figure how to compute the C_{x,y,z} tensor components, B_ and I_ .<br>
    Can someone provide some references about since?<br>
    <br>
    Thank you,<br>
     <br>
                                  Éric.<br>
    <br>
    <div class="moz-signature">-- <br>
      <font color="#000066">
        Éric Germaneau (艾海克), Specialist<br>
        Center for High Performance Computing<br>
        Shanghai Jiao Tong University<br>
        Room 205 Network Center, 800 Dongchuan Road, Shanghai 200240
        China<br>
        <a class="moz-txt-link-abbreviated" href="mailto:M:germaneau@sjtu.edu.cn">M:germaneau@sjtu.edu.cn</a> P:+86-136-4161-6480
        W:<a class="moz-txt-link-freetext" href="http://hpc.sjtu.edu.cn">http://hpc.sjtu.edu.cn</a>
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