Mechanical properties of freely suspended semiconducting graphene-like   layers based on MoS2
  We fabricate freely suspended nanosheets of MoS2 which are characterized by quantitative optical microscopy and high resolution friction force microscopy. We study the elastic deformation of freely suspended nanosheets of MoS2 using an atomic force microscope. The Young's modulus and the initial pre-tension of the nanosheets are determined by performing a nanoscopic version of a bending test experiment. MoS2 sheets show high elasticity and an extremely high Young's modulus (0.30 TPa, 50% larger than steel). These results make them a potential alternative to graphene in applications requiring flexible semiconductor materials. 
Andres Castellanos-Gomez, Menno Poot, Gary A. Steele, Herre S. J. van   der Zant, Nicol\'as Agra\"it and Gabino Rubio-Bollinger
cond-mat.mes-hall cond-mat.mtrl-sci