Transport Properties of High Tc Cuprates Via Spin-Charge Gauge Approach

Lu Yu

 Institute of Physics and Institute of Theoretical Physics, CAS, Beijing

We show that the spin-charge gauge approach to the 2D t-J model can naturally explain many experimental features of transport properties for High Tc cuprates, in particular temperature crossover phenomena in the “pseudogap phase” (PG) and 1/T behavior of conductivities in the “strange metal phase” (SM) at higher T or doping concentration. Furthermore, it is able to reproduce the universality and the quadratic in T behavior (above the crossover) of in-plane resistivity in PG.

1.    P.A. Marchetti, Z.B. Su and L. Yu, Phys. Rev. B58 (1998) 5808;
2.    Phys. Rev. Lett. 86 (2001) 3831;
3.    J. Phys. Cond. Matt. 12 (2000) L329, with J.H. Dai;
4.    Phys. Rev. B69 (2004) 024527, with L. De Leo and G. Orso;
5.    Phys. Rev. B69 (2004) 214514,; Phys Rev. B 71 (2005) 134510; with G. Orso;
6.    To appear in J. Phys.: Condens. Matter, special issue on “Correlated Electrons”