Images of interlayer Josephson vortices in T1{sub 2}Ba{sub 2}CuO{sub 6+delta}.
The strength of the interlayer Josephson tunneling in layered superconductors is an essential test of the interlayer tunneling model as a mechanism for superconductivity, as well as a useful phenomenological parameter. A scanning superconducting quantum interference device (SQUID) microscope was used to image interlayer Josephson vortices in Tl{sub 2}Ba{sub 2}CuO{sub 6+{delta}} and to obtain a direct measure of the interlayer tunneling in a high-transition temperature superconductor with a single copper oxide plane per unit cell. The measured interlayer penetration depth, {lambda}{sub c}, is {approx}20 micrometers, about 20 times the penetration depth required by the interlayer tunneling model.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- ER
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 938235
- Report Number(s):
- ANL/MSD/JA-28457
- Journal Information:
- Science, Journal Name: Science Journal Issue: 5354 ; Feb. 20, 1998 Vol. 279; ISSN 0193-4511; ISSN SCEHDK
- Country of Publication:
- United States
- Language:
- ENGLISH
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