Identifying the background signal in angle-resolved photoemission spectra of high-temperature cuprate superconductors

A. Kaminski; S. Rosenkranz; H. M. Fretwell; J. Mesot; M. Randeria; J. C. Campuzano; M. R. Norman; Z. Z. Li; H. Raffy; T. Sato; T. Takahashi; K. Kadowaki

doi:10.1103/PhysRevB.69.212509

Identifying the background signal in angle-resolved photoemission spectra of high-temperature cuprate superconductors

A. Kaminski, S. Rosenkranz, H. M. Fretwell, J. Mesot, M. Randeria, J. C. Campuzano, M. R. Norman, Z. Z. Li, H. Raffy, T. Sato, T. Takahashi, K. Kadowaki

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

One of the interesting features of the photoemission spectra of the high temperature cuprate superconductors is the presence of a large signal (referred to as the "background") in the unoccupied region of the Brillouin zone. Here we present data indicating that the background signal is a component of the photocurrent that is separate from the spectral function and is most likely due to strong scattering of the photoelectrons. We also present an analytical method that can be used to subtract the background signal.

Original language	English
Article number	212509
Pages (from-to)	212509-1-212509-4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	69
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevB.69.212509
Publication status	Published - 2004 Jun
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.69.212509

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Kaminski, A., Rosenkranz, S., Fretwell, H. M., Mesot, J., Randeria, M., Campuzano, J. C., Norman, M. R., Li, Z. Z., Raffy, H., Sato, T., Takahashi, T., & Kadowaki, K. (2004). Identifying the background signal in angle-resolved photoemission spectra of high-temperature cuprate superconductors. Physical Review B - Condensed Matter and Materials Physics, 69(21), 212509-1-212509-4. [212509]. https://doi.org/10.1103/PhysRevB.69.212509

Kaminski, A, Rosenkranz, S, Fretwell, HM, Mesot, J, Randeria, M, Campuzano, JC, Norman, MR, Li, ZZ, Raffy, H, Sato, T, Takahashi, T & Kadowaki, K 2004, 'Identifying the background signal in angle-resolved photoemission spectra of high-temperature cuprate superconductors', Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 21, 212509, pp. 212509-1-212509-4. https://doi.org/10.1103/PhysRevB.69.212509

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AU - Kaminski, A.

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AU - Fretwell, H. M.

AU - Mesot, J.

AU - Randeria, M.

AU - Campuzano, J. C.

AU - Norman, M. R.

AU - Li, Z. Z.

AU - Raffy, H.

AU - Sato, T.

AU - Takahashi, T.

AU - Kadowaki, K.

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AB - One of the interesting features of the photoemission spectra of the high temperature cuprate superconductors is the presence of a large signal (referred to as the "background") in the unoccupied region of the Brillouin zone. Here we present data indicating that the background signal is a component of the photocurrent that is separate from the spectral function and is most likely due to strong scattering of the photoelectrons. We also present an analytical method that can be used to subtract the background signal.

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Identifying the background signal in angle-resolved photoemission spectra of high-temperature cuprate superconductors

Abstract

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