TY - JOUR
T1 - Tunneling into current-carrying surface states of high- Tc superconductors
AU - Fogelström, M.
AU - Rainer, D.
AU - Sauls, J. A.
PY - 1997/7/14
Y1 - 1997/7/14
N2 - Theoretical results for the ab-plane tunneling conductance in the d-wave model for high- Tc superconductors are presented. The d-wave model predicts surface bound states below the maximum gap. A subdominant order parameter, stabilized by the surface, leads to a splitting of the zero-bias conductance peak (ZBCP) in zero external field and to spontaneous surface currents. In a magnetic field, screening currents shift the bound state spectrum, leading to a splitting of the ZBCP that is linear in H at low fields and saturates at a pair breaking critical field of order Hc* ≃ 3T.
AB - Theoretical results for the ab-plane tunneling conductance in the d-wave model for high- Tc superconductors are presented. The d-wave model predicts surface bound states below the maximum gap. A subdominant order parameter, stabilized by the surface, leads to a splitting of the zero-bias conductance peak (ZBCP) in zero external field and to spontaneous surface currents. In a magnetic field, screening currents shift the bound state spectrum, leading to a splitting of the ZBCP that is linear in H at low fields and saturates at a pair breaking critical field of order Hc* ≃ 3T.
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U2 - 10.1103/PhysRevLett.79.281
DO - 10.1103/PhysRevLett.79.281
M3 - Article
AN - SCOPUS:0031187415
SN - 0031-9007
VL - 79
SP - 281
EP - 284
JO - Physical review letters
JF - Physical review letters
IS - 2
ER -