TY - JOUR
T1 - Photoemission study of the filling-control metal-insulator transition in the two-dimensional system La1.17-xPbxVS3.17
AU - Ino, A.
AU - Fujimori, S.
AU - Okane, T.
AU - Fujimori, A.
AU - Mizokawa, T.
AU - Yasui, Y.
AU - Nishikawa, T.
AU - Sato, M.
N1 - Funding Information:
This work was supported by the New Energy and Industrial Technology Development Organization (NEDO), Special Coordination Fund for Promoting Science and Technology from the Science and Technology Agency of Japan.
PY - 2001
Y1 - 2001
N2 - Using photoemission spectroscopy, the electronic structure around the two-dimensional filling-control metal-insulator transition (MIT) of La1.17-xPbx VS3.17 has been studied. The density of state at the Fermi level disappears in going to the insulating phase, i.e., as x approaches ∼ 0.17 or as the temperature decreases at x = 0.15. The chemical potential shift with carrier doping shows a finite jump between the electron- and hole-doped samples and is unusually suppressed around x = 0.17. The results are contrary to a rigid band picture and show the presence of a pseudogap in the metallic phase.
AB - Using photoemission spectroscopy, the electronic structure around the two-dimensional filling-control metal-insulator transition (MIT) of La1.17-xPbx VS3.17 has been studied. The density of state at the Fermi level disappears in going to the insulating phase, i.e., as x approaches ∼ 0.17 or as the temperature decreases at x = 0.15. The chemical potential shift with carrier doping shows a finite jump between the electron- and hole-doped samples and is unusually suppressed around x = 0.17. The results are contrary to a rigid band picture and show the presence of a pseudogap in the metallic phase.
KW - Electronic structure
KW - Phase transitions-metal-insulator
KW - Photoemission
KW - Two-dimensional systems
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U2 - 10.1016/S0304-8853(00)00701-0
DO - 10.1016/S0304-8853(00)00701-0
M3 - Article
AN - SCOPUS:0035327014
SN - 0304-8853
VL - 226-230
SP - 263
EP - 265
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - PART I
ER -