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Volumn 74, Issue 14, 1995, Pages 2784-2787

Momentum dependence of the superconducting Gap in Bi2Sr2CaCu2O8

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Indexed keywords

EID: 11944259953 PISSN: 00319007 EISSN: None Source Type: Journal
DOI: 10.1103/PhysRevLett.74.2784 Document Type: Article

Times cited : (256)

References (17)

6
- 84927484010
- The detailed measurements of the Fermi surface will be presented in a future publication.

7
- 0000865166
- A six parameter fit was used, as in the work of, although with parameters to fit our data.
- (1994) Phys. Rev. B , vol.50 , pp. 9554
- Radtke, R.J.¹ Norman, M.R.²

8
- 0001109699
- We also see the superlattice with x-ray diffraction in our own samples.
- (1988) J. Phys. C , vol.21 , pp. 6067
- Withers, R.L.¹

9
- 3342884746
- Recently, these authors [, J. Osterwalder et al., (to be published)] have also reported superlattice features.
- (1994) Phys. Rev. Lett. , vol.72 , pp. 2757
- Aebi, P.¹

10
- 84927478516
- While the Bi2212 EDC is a spectral function, the polycrystalline nature of Pt leads to an angle integrated EDC which measures density of states. Note, however, that at 13 K the shapes of the leading edges of both the Bi2212 and Pt spectra are determined by the energy resolution.

11
- 0004265644
- W. A. Benjamin, New York
- (1964) Theory of Superconductivity , pp. 122
- Schrieffer, J.R.¹

12
- 84927483577
- We use a background of the form c∫ω+∞dɛ I(k,ɛ), which is a phenomenological model of secondary emission of inelastically scattered electrons, with the same value of c for all spectra.

13
- 4143071044
- Similar behavior is observed in optical and microwave measurements of YBa2Cu3O6.95
- (1992) Phys. Rev. Lett. , vol.68 , pp. 2390
- Bonn, D.A.¹

14
- 84927498248
- In particular, we cannot get a finite |Δk| even after setting ɛk≠0, since the leading edge of the spectrum would shift to the high binding energy side, which is inconsistent with the data.

15
- 84927470798
- The data shown in the two quadrants were taken on different samples (from the same batch) because our analyzer does not have the angular range to cover both quadrants in the geometry used.

17
- 84927495679
- We find that a gap of the form coskx×cosky fits the data quite well including the position of the nodes [c16].

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