In the highest temperature variety of 600�?100 °C, the low neutron scattering size density at high temperature is constant with a silicon-abundant, liquid surface stage corresponding to molten nickel silicides and copper. This liquid catalyst layer promotes the liquid-period epitaxial growth of the graphene layer by precipitating the surplus carbon https://www.facebook.com/permalink.php?story_fbid=pfbid02tqBaBo2kn1ZfGFJYxZDsYAo8pBeioWy3786ipX8eFstaSmtacy7E9tEq4om2t3oml&id=61562415773754&__cft__[0]=AZXlvW5qfdULWxuywYUu2G_hE-l7Jf3M9Tj8nvqyIld2ebMbUkW9HHlDDFzbeJyhK5S5JQLSvPSzTqbObGddwqurp9e1LW8KQ3sYFQklPl1dALbAVvQTE9jlNUUMRuvTSiQLCYgtZRqZlRV8qPOhouzYdpsQuVRcoFPR9LPi8w9zP9VkoRmogsUKUWltp9mhernIA7Mz_w9i4ADDxxxb9g1h&__tn__=%2CO%2CP-R