1. Adatoms in Graphene Antonio H. Castro Neto Trieste, August 2008

2. Outline Coulomb impurity in graphene Vitor M. Pereira, Johan Nilsson, AHCN Phys.Rev.Lett. 99, 166802 (2007); Vitor M. Pereira, Valeri Kotov, AHCN Phys. Rev. B 78, 085101 (2008). Anderson impurity in graphene Bruno Uchoa, Valeri Kotov, Nuno Peres, AHCN Phys. Rev. Lett. 101, 026805 (2008); Bruno Uchoa, Chiung-Yuan Lin, Nuno Peres, AHCN Phys.Rev.B 77, 035420 (2008)‏.

5. -40-2004020 V g (V)  (1/k  ) 0 1 2 N im (10 12 cm -2 )  (10 3 cm 2 /Vs) 0 2 4 6 012 NO 2 Controlling scattering Geim’s group

6. Tail Mobility (m 2 /V sec)  min (e 2 /h) 12 8 4 0 1.41.21.00.80.60.40.20 16 10 8 6 4 2 0 -50050 V g (V) conductivity (mS) X 2 10 8 6 4 2 0 -50050 V g (V) conductivity (mS) 10 8 6 4 2 0 -50050 V g (V) conductivity (mS) 10 8 6 4 2 0 -50050 V g (V) conductivity (mS) 4e 2 /h 4e 2 /  h Kim’s group

7. Artificial structures: Chemistry, engineering, material science Hashimoto et al. Nature 430, 870 (04) How do adatoms modify graphene’s properties ?

8. Pereira et al., Phys.Rev.Lett. 99, 166802 (2007);

9. 3D Schroedinger Coupling

10. Undercritical Supercritical

12. Andrei’s group

14. HIC Neutron stars

17. E N(E) Anderson’s Impurity Model T>T K

19. Non-interacting: U=0 Broadening Energy V=0

20. Mean-Field

22. The impurity moment can be switched on and off! U = 1 eV n_down V=1eV, e 0 =0.2 eV n_up

23. U = 40 meV U = 0.1 eV

24. Conclusions Impurities in graphene behave in an unusual way when compared to normal metals and semiconductors. One can test theories of nuclear matter under extreme conditions. Control of the magnetic moment formation of transition metals using electric fields.