(a) Raman spectra of single layer graphene (SLG) and bilayer graphene (BLG) on PMMA. (b) Scanning electron microscope (SEM) image of a typical graphene flake on PMMA over a trench. The bar is 100 nm.
Our Spin precession research in suspended graphene has been published in Small
Electrical Detection of Spin Precession in Freely Suspended Graphene Spin Valves on Cross-Linked Poly (methyl methacrylate)
I. Neumann1, J. Van de Vondel, G. Bridoux, M. V. Costache, F. Alzina, C. M. Sotomayor Torres, S. O. Valenzuela, Small, (2012)