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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U2 - 10.1016/s0368-2048(98)00106-6
DO - 10.1016/s0368-2048(98)00106-6
M3 - Article
AN - SCOPUS:0043285630
VL - 92
SP - 87
EP - 90
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
SN - 0368-2048
IS - 1-3
ER -