Magnetic Graphere
Prof. Dr. Joachin Fernandez Rossier (INL Braga, Portugalk)

Spontaneous magnetic order is expected to occur in graphene in two different situations: at the zigzag edges at zero applied field and in the Quantum Hall regime, at half filling. In this talk I will discuss our recent [1,2] and not so recent [3-5] theoretical understanding of magnetic order in graphene in these two situations, the experimental state of the art, and the experiments that would conclusively confirm, or else, recent claims [6] about room temperature edge ferromagnetism in graphene.

[1] J. L. Lado and J. Fernández-Rossier, Phys. Rev. Lett. 113, 027203 (2014)
[2] J. L. Lado and J. Fernández-Rossier, Phys. Rev. B 90, 165429 (2014)
[3] J. Fernández-Rossier, J. J. Palacios, Phys. Rev. Lett. 99, 177204 (2007)
[4] J. Fernández-Rossier, Physical Review B 77 075430 (2008)
[5] F. Muñoz-Rojas, J. Fernández-Rossier, and J. J. Palacios Phys. Rev. Lett. 102, 136810 (2009)
[6] G. Zsolt Madga et al, Room-temperature magnetic order on zigzag edges of narrow graphene nanoribbons, Nature 514, 608 (2014)