Walter de Heer mentions a number of objections regarding the work of Geim and Novoselov who evidently have calculated on many-layer graphene, also referred to as graphite, that has different electronic and mechanical properties.[8] This is a preview of subscription material, log in by means of an establishment to check https://www.facebook.com/permalink.php?story_fbid=pfbid02t5PjjArqP3gPPD1S5n8JHwaZEfNndEsPy9eGu73RNrHLmB7wxu7qmEiraP76ixvfl&id=61560512640678&__cft__[0]=AZWn3HyvOafh63eJ2nDvKcJyIW1z5KHvCQgJJTHSgYoA0uefOT4ooUmaTFW7mD1RVLYAEow_UW17A03TjYpPTyOcD0jq2eBd92YEP_uMHgx0iNNWDRbu4QGsY6sfsDsvtKQ4jqEr_OjlQfL3O59HZGwX3Gqp12O5AFF5aeMIAXZjuWk_YNpgzhUbQMAdCgzaJ-b9CHGNxErbt1TULb-uzf_M&__tn__=%2CO%2CP-R