Most graphene samples have got few layers thus you can see some broad and weak 
00l peaks.However the main part of the diagram is made of asymetric hk bands 
(10 11), no hkl reflexions with l non 0 (Have a look at the old papers of 
Warren and Franklin): 
Patrick Weisbecker

      De : Nelson Duarte <nelson.dua...@ipn.pt>
 À : rietveld_l@ill.fr 
 Envoyé le : Mercredi 26 novembre 2014 1h34
 Objet : XRD graphene
   
Dear rietvelds

We index graphene samples with ICDD card of graphite, correct ?
Wich ICDD card of graphite are usualy used ?

Thanks in advance

Best rergards

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