Scientific Reports 6: Article number: 21590; published online: 22 February 2016; updated: 23 January 2017

This Article contains errors in Reference 15 which was incorrectly given as:

Song, Y., Zhai, F. & Guo, Y. Strain-tunable spin transport in ferromagnetic graphene junctions. Appl. Phys. Lett. 103, 183111 (2013).

The correct reference is listed below:

Song, Y., Zhai, F. & Guo, Y. Generation of a fully valley-polarized current in bulk graphene. Appl. Phys. Lett. 103, 183111 (2013).