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- Title
Tunneling investigations of single crystals of the single-layer cuprate Bi[sub 2]Sr[sub 2]CuO[sub z] in high magnetic fields.
- Authors
Vedeneev, S. I.
- Abstract
The coexistence of a superconducting gap and a normal-state gap (pseudogap) is observed in tunneling experiments with high-quality single crystals of the single-layer cuprate Bi[sub 2]Sr[sub 2]CuO[sub z]. At temperatures T<T[sub c] the normal-state gap, whose width is close to that of the superconducting gap, does not vanish in magnetic fields H>H[sub c2]. The large smearing of the gap structure in the tunneling spectra and the high conductance of tunnel junctions at zero bias voltage are due to the strong angular dependence of the superconducting- and normal-state gaps. The results of the investigations are in good agreement with recently published angle-resolved photoemission data. © 1998 American Institute of Physics.
- Subjects
COPPER compounds; CRYSTALS; QUANTUM tunneling
- Publication
JETP Letters, 1998, Vol 68, Issue 3, p230
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.567851