For the highest temperature choice of 600�?100 °C, the lower neutron scattering length density at high temperature is consistent with a silicon-abundant, liquid surface period equivalent to molten nickel silicides and copper. This liquid catalyst layer encourages the liquid-stage epitaxial growth of the graphene layer by precipitating the excess carbon https://www.facebook.com/permalink.php?story_fbid=pfbid0q9ndf1BJBDTdkYp47dhgkVwzjCa9uvUfrph1G5iY6jDFJ3CFiubTvYb2BugmQWHnl&id=61562415773754&__cft__[0]=AZUXObaQYt-gIoMxrW_KprnWU9S9uDqrPLJ9OYNPUyTxEgdQhL5RNZwEptVpMksEZCfj3B4zmy4dAGn59S2XXsODDpfvcpIzI0HLcqXXgN-2-lkH84CiudiaZ4UeKaXhFh6T1Yr8X50femqGbt_mSIJRaubt4AnKKX__f18GQwqXKPvNpSL_qZ-80EcFQ6gLjWH7-TAXqBj801AcshJePcsO&__tn__=%2CO%2CP-R