Effects of spin fluctuations on the tunneling spectroscopy in high-Tc superconductors
Ching-Long Wu, Chung-Yu Mou, Darwin Chang
DOI 10.1103/PhysRevB.63.172503 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We investigate the effects of spin fluctuations on the tunneling spectra of the normal-metal–superconductor junction. In the high junction resistance limit, the dip/hump structure observed in ARPES data for the high Tc superconductors is reproduced in a random-phase approximation treatment of the t−t′−J model. It is shown that the dip/hump structure weakens as doping increases as reflected in the data. In the other limit, we predict that the zero bias Andreev peak can coexist with the dip/hump structure. Furthermore, the c-axis tunneling spectra is found to be very similar to recent scanning tunnel microscope data once these fluctuations are included.
Similar papers
The effects of spin fluctuations on the tunneling spectroscopy in High-T_c Superconductors
similarity 0.92C. L. Wu et al. · 2000 · arXiv:cond-mat/0012168
Source status unknown — claims are unverified
Tunneling spectroscopy for ferromagnet/superconductor junctions
similarity 0.91Igor Žutić & Oriol T. Valls
Source status unknown — claims are unverified
Superconducting phonon structure in the transition from tunneling to contact regime
similarity 0.90J. G. Rodrigo et al.
Source status unknown — claims are unverified
Observation of Andreev Bound States at Spin-active Interfaces
similarity 0.90F. Hübler et al.
Source status unknown — claims are unverified
Nonequilibrium effects in tunnel Josephson junctions
similarity 0.90E. V. Bezuglyi et al.
Source status unknown — claims are unverified
Andreev reflection off a fluctuating superconductor in the absence of equilibrium
similarity 0.89P. Devillard et al.
Source status unknown — claims are unverified