<div dir="ltr"><div dir="ltr">On Tue, Sep 17, 2019 at 11:00 PM David Kostov <<a href="mailto:dkca@yahoo.com">dkca@yahoo.com</a>> wrote:</div><div dir="ltr"><br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div class="gmail-m_6955244027847464534yahoo-style-wrap" style="font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-size:16px">For a fcc structure I saw in the pw.x definition that with ibrav=0 , we can define (I believe it is for primitive structure?)<br></div></div></blockquote><div><br></div><div>primitive, yes <br></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div class="gmail-m_6955244027847464534yahoo-style-wrap" style="font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-size:16px"><span></span><div dir="ltr"><div dir="ltr">My question is; can we also define this as below.</div><div dir="ltr"><div><span><pre>a/2(1,0,1) <br>a/2(0,1,1)<br>a/2(1,1,0)</pre></span></div><div dir="ltr">and does the order matters?</div></div></div></div></div></blockquote><div><br></div><div>it is a good habit to use right-handed triplets, but I think QE works also with left-handed ones.</div><div><br></div><div>Paolo<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">_______________________________________________<br>
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