Interlayer Tunneling and Gap Anisotropy in High-Temperature Superconductors

@article{Chakravarty1993InterlayerTA,
  title={Interlayer Tunneling and Gap Anisotropy in High-Temperature Superconductors},
  author={Sudip Chakravarty and Asle Sudb� and Philip W. Anderson and Steven P. Strong},
  journal={Science},
  year={1993},
  volume={261},
  pages={337 - 340}
}
A quantitative analysis of a recent model of high-temperature superconductors based on an interlayer tunneling mechanism is presented. This model can account well for the observed magnitudes of the high transition temperatures in these materials and implies a gap that does not change sign, can be substantially anisotropic, and has the same symmetry as the crystal. The experimental consequences explored so far are consistent with the observations. 

Topics from this paper

Temperature dependent gap anisotropy from interlayer tunneling
We show that the interlayer tunneling mechanism of high temperature superconductivity has a novel consequence, viz., a gap anisotropy that is strongly temperature dependent. In particular, theExpand
Interlayer tunneling and the superconducting gap at finite temperature
Abstract The temperature dependence of the gap arising from interlayer tunneling is studied. We find that if superconductivity is solely due to an interlayer interaction, the gap falls very steeplyExpand
Interlayer correlations in a Josephson coupling model for cuprate superconductors
Abstract Modeling high- T c superconductors as a superlattice of Josephson coupled CuO 2 layers the interlayer correlation function for the gap is calculated. A significant correlation is foundExpand
Interlayer Tunneling in High-Temperature Superconductors Beyond the Mean-Field Approximation
The interlayer tunneling in high-temperature superconductors has been reconsidered beyond the mean-field approximation. The modification of the quasiparticle spectrum originating from theExpand
Theory Aspects of High - Temperature Superconductivity
We overview selected theoretical efforts made to explain origin of high T c superconductivity in metallic oxides and other nonconventional superconductors. We discuss, in some detail, approachesExpand
Spin Fluctuation Effects in High-T c Superconductors
By using a theory that includes antiferromagnectic short-ranged correlations, recent experiments on the high-transition temperature (high-T c ) cuprate superconductors like photoemission, tunnelingExpand
Quantitative Determination of a Microscopic Mechanism of High Tc Superconductivity
Within the t-J model of copper-oxides, the condensation energy can be related to the change in the dynamical spin structure factor between the superconducting and the normal states. By analyzingExpand
Interlayer Tunneling Models of Cuprate Superconductivity: Implications of a Recent Experiment
It is shown that, given a few generic assumptions, any theory of high-temperature superconductivity that attributes a substantial fraction of the condensation energy to the saving of c-axis kineticExpand
Fermiology and superconducting gap anisotropy of cuprate superconductors
Recent experiments demonstrate that high-resolution angle-resolved photoemission is a unique new experimental tool to address key issues of high-temperature superconductors such as the low-energyExpand
Resonant tunneling in high-Tc superconductors
A review is presented of the author's work on resonance tunneling as an electron transport mechanism along the c axis in high-temperature layered cuprates. A formulation of the problem is given,Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 32 REFERENCES
Interlayer pair hopping: Superconductivity from the resonating-valence-bond state.
TLDR
A model is presented which suggests how superconductivity in the high-T/sub c/ materials is affected by charge-carying boson interactions. Expand
Experimental Constraints on the Theory of High-Tc Superconductivity
TLDR
To reconcile an apparent contradiction, a new type of electron liquid, called a Luttinger liquid, has been postulated, and the present article aims to show the need for this postulate. Expand
Superconducting Gap in Bi-Sr-Ca-Cu-O by High-Resolution Angle-Resolved Photoelectron Spectroscopy
TLDR
Detailed studies indicate a superconducting gap in the high-temperature superconductor Bi2Sr2CaCu2O8, giving support to the Fermi liquid picture. Expand
Effect of bismuth on high-Tc cuprate superconductors: Electronic structure of Bi2Sr
The electronic structure of the new Bi-based high-temperature superconductor, with T/sub c/ onsets above 110 K, is shown to be altered considerably from that of the other cuprate superconductors byExpand
Phenomenology of the normal state of Cu-O high-temperature superconductors.
TLDR
The universal anomalies in the normal state of Cu-O high-temperature superconductors follow from a single hypothesis: There exist charge- and spin-density excitations with the absorptive part of the polarizability at low frequencies proportional to T, where T is the temperature, and constant otherwise. Expand
Coulomb correlated band structure and Fermi surfaces of high Tc superconductors
Abstract Predictions of local density functional (LDF) calculations of the electronic structure and transport properties of high T c superconductors are reviewed. As evidenced by the excellentExpand
Temperature dependence of the c-axis resistivity of high-Tc layered oxides.
  • Kumar, Jayannavar
  • Materials Science, Medicine
  • Physical review. B, Condensed matter
  • 1992
TLDR
This calculation gives the same temperature dependence for the c-axis resistivity as that for the in-plane resistivity, and makes some definite predictions that can be put to test. Expand
Electronic structure and properties of Bi2Sr2CaCu2O8, the third high-Tc superconductor
Abstract Results of a highly precise local density determination of the electronic structure (energy bands, densities of states, Fermi surface and charge densities) of the new high-Tc superconductorExpand
Electronic characteristics of Tl2Ba2CuO6
Abstract A number of properties identifiable from the electronic bands and one-electron wavefunctions have been obtained from a well converged self-consistent calculation of the electronic structureExpand
Anomalously large gap anisotropy in the a - b plane of Bi 2 Sr 2 CaCu 2 O 8 + δ
Superconducting gap anisotropy at least an order of magnitude larger than that of the conventional superconductors has been observed in the [ital a]-[ital b] plane of Bi[sub 2]Sr[sub 2]CaCu[subExpand
...
1
2
3
4
...