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<DIV><FONT face=Arial size=2><SPAN class=023431519-22052009>Dear
Andrea,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=023431519-22052009>I finally figured it
out, thanks to your hint. I guess I was misled by the term "crystal", which
actually refers to the reciprocal lattice. Now everything checks out.
Thanks again.</SPAN></FONT></DIV>
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color=#000000>Best regards,<?xml:namespace prefix = o ns =
"urn:schemas-microsoft-com:office:office" /><o:p></o:p></FONT></SPAN></P>
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<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial; mso-ansi-language: EN-US"><FONT
color=#000000>Kostyantyn Borysenko</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial; mso-ansi-language: EN-US"></SPAN><SPAN
lang=EN-US
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial; mso-ansi-language: EN-US"><FONT
color=#000000>Department of Electrical and Computer Engineering
<BR></FONT></SPAN><FONT face=Arial size=2>North Carolina State
University<BR></FONT></P></DIV></BODY></HTML>