Angle resolved photoemission study of the spin-Peierls system α′-NaV2O5

K. Kobayashi; T. Mizokawa; A. Fujimori; M. Isobe; Y. Ueda

doi:10.1016/s0368-2048(98)00106-6

Angle resolved photoemission study of the spin-Peierls system α′-NaV₂O₅

K. Kobayashi^*, T. Mizokawa, A. Fujimori, M. Isobe, Y. Ueda

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

We have made an X-ray photoemission and angle-resolved photoemission (ARPES) study of NaV₂O₅ at room temperature, i.e. in the paramagnetic phase well above its spin-Peierls transition temperature. The V 2p core level spectra well reflect its mixed valence nature. The result of the ARPES spectra clarifies the experimental band structure, reflecting the one-dimensionality of this compound. The lower binding energy side of the V 3d band shows a momentum-dependent modulation with the periodicity of π, suggesting the existence of antiferromagnetic correlations or holon excitations in the one-dimensional Mott insulator.

Original language	English
Pages (from-to)	87-90
Number of pages	4
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	92
Issue number	1-3
DOIs	https://doi.org/10.1016/s0368-2048(98)00106-6
Publication status	Published - 1998 May
Externally published	Yes

Keywords

ARPES
NaVO
One-dimensional quantum-spin system

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

Access to Document

10.1016/s0368-2048(98)00106-6

Cite this

@article{c7eff24ab9e3447891802fbdb2de4f5b,

title = "Angle resolved photoemission study of the spin-Peierls system α′-NaV2O5",

abstract = "We have made an X-ray photoemission and angle-resolved photoemission (ARPES) study of NaV2O5 at room temperature, i.e. in the paramagnetic phase well above its spin-Peierls transition temperature. The V 2p core level spectra well reflect its mixed valence nature. The result of the ARPES spectra clarifies the experimental band structure, reflecting the one-dimensionality of this compound. The lower binding energy side of the V 3d band shows a momentum-dependent modulation with the periodicity of π, suggesting the existence of antiferromagnetic correlations or holon excitations in the one-dimensional Mott insulator.",

keywords = "ARPES, NaVO, One-dimensional quantum-spin system",

author = "K. Kobayashi and T. Mizokawa and A. Fujimori and M. Isobe and Y. Ueda",

note = "Funding Information: We would like to thank T. Tohyama and S. Maekawa for providing the results of exact diagonalization studies prior to publication and for fruitful discussion and H. Shiba and C. Kim for informative discussions. One of us (KK) is supported by a Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists. This work is supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture. ",

year = "1998",

month = may,

doi = "10.1016/s0368-2048(98)00106-6",

language = "English",

volume = "92",

pages = "87--90",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

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number = "1-3",

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TY - JOUR

T1 - Angle resolved photoemission study of the spin-Peierls system α′-NaV2O5

AU - Kobayashi, K.

AU - Mizokawa, T.

AU - Fujimori, A.

AU - Isobe, M.

AU - Ueda, Y.

N1 - Funding Information: We would like to thank T. Tohyama and S. Maekawa for providing the results of exact diagonalization studies prior to publication and for fruitful discussion and H. Shiba and C. Kim for informative discussions. One of us (KK) is supported by a Research Fellowship of the Japan Society for the Promotion of Science for Young Scientists. This work is supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Science and Culture.

PY - 1998/5

Y1 - 1998/5

N2 - We have made an X-ray photoemission and angle-resolved photoemission (ARPES) study of NaV2O5 at room temperature, i.e. in the paramagnetic phase well above its spin-Peierls transition temperature. The V 2p core level spectra well reflect its mixed valence nature. The result of the ARPES spectra clarifies the experimental band structure, reflecting the one-dimensionality of this compound. The lower binding energy side of the V 3d band shows a momentum-dependent modulation with the periodicity of π, suggesting the existence of antiferromagnetic correlations or holon excitations in the one-dimensional Mott insulator.

AB - We have made an X-ray photoemission and angle-resolved photoemission (ARPES) study of NaV2O5 at room temperature, i.e. in the paramagnetic phase well above its spin-Peierls transition temperature. The V 2p core level spectra well reflect its mixed valence nature. The result of the ARPES spectra clarifies the experimental band structure, reflecting the one-dimensionality of this compound. The lower binding energy side of the V 3d band shows a momentum-dependent modulation with the periodicity of π, suggesting the existence of antiferromagnetic correlations or holon excitations in the one-dimensional Mott insulator.

KW - ARPES

KW - NaVO

KW - One-dimensional quantum-spin system

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