@article{20.500.12614/1425, year = {2017}, url = {http://hdl.handle.net/20.500.12614/1425}, title = {Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite}, doi = {10.3762/bjnano.8.235}, volume = {8}, journal = {Beilstein Journal of Nanotechnology}, author = {Gant P. and Ghasemi F. and Maeso D. and Munuera C. and López-Elvira E. and Frisenda R. and De Lara D.P. and Rubio-Bollinger G. and Garcia-Hernandez M. and Castellanos-Gomez A.}, }