On the possibility of s plus d wave superconductivity within a two-band 
scenario for high Tc cuprates

Bussmann-Holder, A.; Micnas, R.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

On the possibility of s plus d wave superconductivity within a two-band scenario for high T_c cuprates

MPS-Authors

/persons/resource/persons279820

Bussmann-Holder, A.
Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;
Department Nanochemistry (Bettina V. Lotsch), Max Planck Institute for Solid State Research, Max Planck Society;
Department Physical Chemistry of Solids (Joachim Maier), Max Planck Institute for Solid State Research, Max Planck Society;
Department Electronic Structure Theory (Ali Alavi), Max Planck Institute for Solid State Research, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Bussmann-Holder, A., & Micnas, R. (2002). On the possibility of s plus d wave superconductivity within a two-band scenario for high T_c cuprates. Journal of Superconductivity, 15(5), 321-325.

Cite as: https://hdl.handle.net/21.11116/0000-000E-ED91-3

Abstract

A variety of different experimental results show substantial
evidence that the order parameter in high-temperature
superconducting copper oxides is not of pure d-wave symmetry,
but that an s-wave component exists, which especially shows up
in experiments that test the c-axis properties. These findings
are modeled theoretically within a two-band model with
interband interactions, where the superconducting order
parameters in the two bands are allowed to differ in symmetry.
It is found that the coupling of order parameters with
different symmetries (s+d) leads to substantial enhancements of
the superconducting transition temperature T-c as compared to
order parameters with only s-wave symmetry. An additional
enhancement factor of T-c is obtained from the coupling of the
bands to the lattice where moderate couplings favor
superconductivity while too strong couplings lead to electron
(hole) localization and consequently suppress
superconductivity.