TY - JOUR
T1 - Angle-resolved photoemission study of quasi one-dimensional conductor Nb3Te4
AU - Fujisawa, H.
AU - Kumigashira, H.
AU - Takahashi, T.
AU - Kaneko, H.
AU - Ishihara, Y.
AU - Okamoto, H.
N1 - Funding Information:
This work was supported by grants CREST of JST and from the Ministry of Education, Science and Culture of Japan. H.K. thanks the Japan Society for the Promotion of Science for financial support.
PY - 2001/3
Y1 - 2001/3
N2 - We have performed angle-resolved photoemission spectroscopy on Nb3Te4, which has zigzag Nb-Nb chains along the c-axis in the crystal. We found a dispersive Nb 4d band near the Fermi level (EF) which crosses EF midway between the center and the boundary of the Brillouin zone in the chain direction. The intensity of the Nb 4d band was found to be substantially suppressed near/at EF, showing a typical Tomonaga-Luttinger liquid behavior of 1D metals. On the other hand, a clear Fermi-edge cutoff, characteristic of 2D or 3D metals, is seen for this Nb 4d band. All these results suggest that Nb3Te4 is a quasi 1D metal with admixture of 2D or 3D character due to the finite inter-chain interaction.
AB - We have performed angle-resolved photoemission spectroscopy on Nb3Te4, which has zigzag Nb-Nb chains along the c-axis in the crystal. We found a dispersive Nb 4d band near the Fermi level (EF) which crosses EF midway between the center and the boundary of the Brillouin zone in the chain direction. The intensity of the Nb 4d band was found to be substantially suppressed near/at EF, showing a typical Tomonaga-Luttinger liquid behavior of 1D metals. On the other hand, a clear Fermi-edge cutoff, characteristic of 2D or 3D metals, is seen for this Nb 4d band. All these results suggest that Nb3Te4 is a quasi 1D metal with admixture of 2D or 3D character due to the finite inter-chain interaction.
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U2 - 10.1016/S0368-2048(00)00321-2
DO - 10.1016/S0368-2048(00)00321-2
M3 - Conference article
AN - SCOPUS:0035277065
SN - 0368-2048
VL - 114-116
SP - 647
EP - 652
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
T2 - 8th International Conference on Electronic Spectroscopy and Structure (ICESS-8)
Y2 - 8 August 2000 through 12 August 2000
ER -