Angle-resolved photoemission study of Sr2CuO3

H. Fujisawa; T. Yokoya; T. Takahashi; S. Miyasaka; M. Kibune; H. Takagi

doi:10.1103/PhysRevB.59.7358

Angle-resolved photoemission study of Sr₂CuO₃

H. Fujisawa, T. Yokoya, T. Takahashi, S. Miyasaka, M. Kibune, H. Takagi

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

58 Citations (Scopus)

Abstract

We report angle-resolved photoemission spectroscopy (ARPES) on a single Cu-O chain compound Sr₂CuO₃ with Ne I photons. In contrast with previous ARPES with higher-energy photons, the present result clearly shows two well-separated branches of dispersions near E_F ascribable to spinon and holon excitations, respectively. This indicates that spin and charge degrees of freedom are separated in one-dimensional Cu-O chains, supporting the theoretical prediction as well as the previous ARPES interpretation. Comparison with previous ARPES results indicates that surface, photoionization cross section, and finite-temperature effects substantially modify ARPES spectra.

Original language	English
Pages (from-to)	7358-7361
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	59
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.59.7358
Publication status	Published - Jan 1 1999
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.59.7358

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abstract = "We report angle-resolved photoemission spectroscopy (ARPES) on a single Cu-O chain compound Sr2CuO3 with Ne I photons. In contrast with previous ARPES with higher-energy photons, the present result clearly shows two well-separated branches of dispersions near EF ascribable to spinon and holon excitations, respectively. This indicates that spin and charge degrees of freedom are separated in one-dimensional Cu-O chains, supporting the theoretical prediction as well as the previous ARPES interpretation. Comparison with previous ARPES results indicates that surface, photoionization cross section, and finite-temperature effects substantially modify ARPES spectra.",

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T1 - Angle-resolved photoemission study of Sr2CuO3

AU - Fujisawa, H.

AU - Yokoya, T.

AU - Takahashi, T.

AU - Miyasaka, S.

AU - Kibune, M.

AU - Takagi, H.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - We report angle-resolved photoemission spectroscopy (ARPES) on a single Cu-O chain compound Sr2CuO3 with Ne I photons. In contrast with previous ARPES with higher-energy photons, the present result clearly shows two well-separated branches of dispersions near EF ascribable to spinon and holon excitations, respectively. This indicates that spin and charge degrees of freedom are separated in one-dimensional Cu-O chains, supporting the theoretical prediction as well as the previous ARPES interpretation. Comparison with previous ARPES results indicates that surface, photoionization cross section, and finite-temperature effects substantially modify ARPES spectra.

AB - We report angle-resolved photoemission spectroscopy (ARPES) on a single Cu-O chain compound Sr2CuO3 with Ne I photons. In contrast with previous ARPES with higher-energy photons, the present result clearly shows two well-separated branches of dispersions near EF ascribable to spinon and holon excitations, respectively. This indicates that spin and charge degrees of freedom are separated in one-dimensional Cu-O chains, supporting the theoretical prediction as well as the previous ARPES interpretation. Comparison with previous ARPES results indicates that surface, photoionization cross section, and finite-temperature effects substantially modify ARPES spectra.

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Angle-resolved photoemission study of Sr₂CuO₃

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