Ortho-II band folding in YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} films revealed by angle-resolved photoemission.

Journal Article · Fri Apr 22 00:00:00 EDT 2011 · Phys. Rev. B

DOI:https://doi.org/10.1103/PhysRevB.83.140511· OSTI ID:1012539

Sassa, Y; Radovic, M; Mansson, M; Razzoli, E; Cui, X; Pailhes, S; Guerrero, S; Shi, M; Willmott, P R; Miletto Granozio, F; Mesort, J; Norman, M R; Patthey, L ^[1]

---

1. Materials Science Division

We present an angle-resolved photoelectron spectroscopy study of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} films in situ grown by pulsed laser deposition. We have successfully produced underdoped surfaces with ordered oxygen vacancies within the CuO chains resulting in a clear ortho-II band folding of the Fermi surface. This indicates that order within the CuO chains affects the electronic properties of the CuO{sub 2} planes. Our results highlight the importance of having not only the correct surface carrier concentration, but also a very well ordered and clean surface in order that photoemission data on this compound be representative of the bulk.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 1012539
• Report Number(s): ANL/MSD/JA-69252; TRN: US201110%%151
• Journal Information: Phys. Rev. B, Vol. 83, Issue Apr. 22, 2011
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHAINS
DEPOSITION
FERMI LEVEL
LASERS
OXYGEN
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
VACANCIES