Momentum distribution sum rule for angle-resolved photoemission

Mohit Randeria; Hong Ding; J. C. Campuzano; A. Bellman; G. Jennings; T. Yokoya; T. Takahashi; H. Katayama-Yoshida; T. Mochiku; K. Kadowaki

doi:10.1103/PhysRevLett.74.4951

Momentum distribution sum rule for angle-resolved photoemission

Mohit Randeria, Hong Ding, J. C. Campuzano, A. Bellman, G. Jennings, T. Yokoya, T. Takahashi, H. Katayama-Yoshida, T. Mochiku, K. Kadowaki

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

139 Citations (Scopus)

Abstract

Within a spectral function A(k,ω) interpretation of angle-resolved photoemission (ARPES), the intensity obeys the sum rule dω fωA(k,ω)=nk, where f is the Fermi function and nk the momentum distribution. We show the usefulness of this sum rule for analyzing ARPES data. The integrated intensity in Bi2Sr2CaCu2O8 at kF is independent of temperature even though the spectrum is strongly T dependent. We also demonstrate the possibility of measuring nk using ARPES for YBa2Cu4O8.

Original language	English
Pages (from-to)	4951-4954
Number of pages	4
Journal	Physical Review Letters
Volume	74
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.74.4951
Publication status	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Momentum distribution sum rule for angle-resolved photoemission",

abstract = "Within a spectral function A(k,ω) interpretation of angle-resolved photoemission (ARPES), the intensity obeys the sum rule dω fωA(k,ω)=nk, where f is the Fermi function and nk the momentum distribution. We show the usefulness of this sum rule for analyzing ARPES data. The integrated intensity in Bi2Sr2CaCu2O8 at kF is independent of temperature even though the spectrum is strongly T dependent. We also demonstrate the possibility of measuring nk using ARPES for YBa2Cu4O8.",

author = "Mohit Randeria and Hong Ding and Campuzano, {J. C.} and A. Bellman and G. Jennings and T. Yokoya and T. Takahashi and H. Katayama-Yoshida and T. Mochiku and K. Kadowaki",

year = "1995",

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T1 - Momentum distribution sum rule for angle-resolved photoemission

AU - Randeria, Mohit

AU - Ding, Hong

AU - Campuzano, J. C.

AU - Bellman, A.

AU - Jennings, G.

AU - Yokoya, T.

AU - Takahashi, T.

AU - Katayama-Yoshida, H.

AU - Mochiku, T.

AU - Kadowaki, K.

PY - 1995

Y1 - 1995

N2 - Within a spectral function A(k,ω) interpretation of angle-resolved photoemission (ARPES), the intensity obeys the sum rule dω fωA(k,ω)=nk, where f is the Fermi function and nk the momentum distribution. We show the usefulness of this sum rule for analyzing ARPES data. The integrated intensity in Bi2Sr2CaCu2O8 at kF is independent of temperature even though the spectrum is strongly T dependent. We also demonstrate the possibility of measuring nk using ARPES for YBa2Cu4O8.

AB - Within a spectral function A(k,ω) interpretation of angle-resolved photoemission (ARPES), the intensity obeys the sum rule dω fωA(k,ω)=nk, where f is the Fermi function and nk the momentum distribution. We show the usefulness of this sum rule for analyzing ARPES data. The integrated intensity in Bi2Sr2CaCu2O8 at kF is independent of temperature even though the spectrum is strongly T dependent. We also demonstrate the possibility of measuring nk using ARPES for YBa2Cu4O8.

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DO - 10.1103/PhysRevLett.74.4951

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