Osterwalder, J.; Aebi, P.; Schwaller, Patrick; Schlapbach, L.; Shimoda, M.; Mochiku, T.; Kadowaki, K. (1995). Angle-resolved photoemission experiments on Bi2Sr2CaCu2O8+?(001) Applied Physics A Materials Science & Processing, 60(3), pp. 247-254. Springer 10.1007/BF01538399
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Core-level X-ray photoelectron-diffraction patterns have been measured from cleaved Bi2Sr2CaCu2O8+δ (001) surfaces for all elements present in this compound. The incommensurate modulation alongb ([010]) leads to a strong inequivalence ofa- andb-directions for Bi, Sr and Cu photoelectrons, while Ca and O emission show less effect. Ultraviolet-photoemission experiments recording the emission intensity at the Fermi energy over a large solid angle are also presented, providing a direct mapping of the Fermi surface. Ac(2×2) superstructure is observed on the Fermi surface suggesting antiferromagnetic correlations within the Cu−O planes. The effects of the lattice modulation are clearly observable at the Fermi energy, and they are enhanced for binding energies higher than a few tens of meV.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
School of Engineering and Computer Science > Institute for Surface Applied Laser, Phototonics and Surface Technologies ALPS School of Engineering and Computer Science |
Name: |
Osterwalder, J.; Aebi, P.; Schwaller, Patrick; Schlapbach, L.; Shimoda, M.; Mochiku, T. and Kadowaki, K. |
ISSN: |
0947-8396 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Patrick Schwaller |
Date Deposited: |
10 Dec 2019 10:55 |
Last Modified: |
18 Aug 2020 12:06 |
Publisher DOI: |
10.1007/BF01538399 |
ARBOR DOI: |
10.24451/arbor.9292 |
URI: |
https://arbor.bfh.ch/id/eprint/9292 |
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