TY - JOUR
T1 - Study of the quasiparticle spectra near the surface or nonmagnetic impurities in high-Tc superconductors
AU - Tsuchiura, H.
AU - Tanuma, Y.
AU - Tanaka, Y.
AU - Ogata, M.
AU - Kashiwaya, S.
AU - Inoue, J.
N1 - Funding Information:
This work is supported by a Grant-in-Aid for Creative Basic Research (08NP1201) of the Ministry from Education, Science, Sports and Culture. Numerical computation in this work was carried out on the NEC SX-4B owned by 08NP1201.
PY - 1999/9/10
Y1 - 1999/9/10
N2 - The local density of states (LDOS) around an impurity or surface, which can be observed in scanning tunneling spectroscopy, is studied in the two-dimensional t-t′-J model. The spatial dependence of the order parameter is numerically determined self-consistently using the Gutzwiller approximation and the Bogoliubov-de Gennes theory. It is found that the LDOS shows the zero-energy peak when the t′ term exists.
AB - The local density of states (LDOS) around an impurity or surface, which can be observed in scanning tunneling spectroscopy, is studied in the two-dimensional t-t′-J model. The spatial dependence of the order parameter is numerically determined self-consistently using the Gutzwiller approximation and the Bogoliubov-de Gennes theory. It is found that the LDOS shows the zero-energy peak when the t′ term exists.
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U2 - 10.1016/S0039-6028(99)00601-9
DO - 10.1016/S0039-6028(99)00601-9
M3 - Conference article
AN - SCOPUS:0033337289
SN - 0039-6028
VL - 438
SP - 347
EP - 352
JO - Surface Science
JF - Surface Science
IS - 1-3
T2 - Proceedings of the 1998 International Symposium on Surface and Interface: Properties of Different Symmetry Crossing 98 (ISSI PDSC-98)
Y2 - 19 November 1998 through 21 November 1998
ER -