<div>Dear wien users,</div>  <div> </div>  <div>       Recently, When I calculated the ELNES of h-BN, a weak peak appeared in my spectra, the selection rule I choosed was dipole, but I think this peak appeared because of quadrupole. I don't konw is it possible.</div>  <div> </div>  <div>       Any reply will be appreciated.</div>  <div> </div>  <div>                                                                     BoKang</div>  <div>       </div><p> 
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