<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'>Dear all,<br><br>Could anyone please suggest me some free software to draw phonon spectra under windows XP systems? Great thanks!<br><br>Best regards,<br>Liwei<br></div></body></html>