Experimental evidence for two gaps in the high-temperature La1.83Sr0.17CuO4 
superconductor

Khasanov, R.; Shengelaya, A.; Maisuradze, A.; La Mattina, F.; Bussmann-Holder, A.; Keller, H.; Müller, K. A.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Experimental evidence for two gaps in the high-temperature La_1.83Sr_0.17CuO₄ superconductor

MPS-Authors

/persons/resource/persons279820

Bussmann-Holder, A.
Former Departments, 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;
Department Physical Chemistry of Solids (Joachim Maier), 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;

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

Khasanov, R., Shengelaya, A., Maisuradze, A., La Mattina, F., Bussmann-Holder, A., Keller, H., et al. (2007). Experimental evidence for two gaps in the high-temperature La_1.83Sr_0.17CuO₄ superconductor. Physical Review Letters, 98(5): 057007.

Cite as: https://hdl.handle.net/21.11116/0000-000E-B6E3-4

Abstract

The in-plane magnetic field penetration depth (lambda(ab)) in single-crystal La1.83Sr0.17CuO4 was investigated by muon-spin rotation (mu SR). The temperature dependence of lambda(-2)(ab) has an inflection point around 10-15 K , suggesting the presence of two superconducting gaps: a large gap (Delta(d)(1)) with d-wave and a small gap (Delta(s)(2)) with s-wave symmetry. The zero-temperature values of the gaps at mu H-0 = 0.02 T were found to be Delta(d)(1)(0) = 8.2(1) meV and Delta(s)(2)(0) = 1.57(8) meV.