Interlayer Transport of Quasiparticles and Cooper Pairs in Bi{sub 2} Sr{sub 2} CaCu{sub 2 }O{sub 8 + {delta}} Superconductors
- Theory Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Center for Materials Science, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Superconductivity Technology Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
We study the c -axis transport of stacked, intrinsic junctions in Bi{sub 2}Sr {sub 2}CaCu{sub 2}O{sub 8+{delta}} single crystals, fabricated by the double-sided ion beam processing technique from single crystal whiskers. Measurements of the I-V characteristics of these samples allow us to obtain the temperature and voltage dependence of the quasiparticle c -axis conductivity in the superconducting state, the Josephson critical current, and the superconducting gap. We show that the BCS d -wave model in the clean limit for resonant impurity scattering, with a significant contribution from coherent interlayer tunneling, describes satisfactorily the low temperature and low energy c -axis transport of both quasiparticles and Cooper pairs. {copyright} {ital 1999} {ital The American Physical Society }
- OSTI ID:
- 353757
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 82; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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