Photoemission study of the filling-control metal-insulator transition in the two-dimensional system La1.17-xPbxVS3.17

A. Ino; S. Fujimori; T. Okane; A. Fujimori; T. Mizokawa; Y. Yasui; T. Nishikawa; M. Sato

doi:10.1016/S0304-8853(00)00701-0

Photoemission study of the filling-control metal-insulator transition in the two-dimensional system La_1.17-xPb_xVS_3.17

A. Ino^*, S. Fujimori, T. Okane, A. Fujimori, T. Mizokawa, Y. Yasui, T. Nishikawa, M. Sato

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

Using photoemission spectroscopy, the electronic structure around the two-dimensional filling-control metal-insulator transition (MIT) of La_1.17-xPb_x VS_3.17 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.

Original language	English
Pages (from-to)	263-265
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	226-230
Issue number	PART I
DOIs	https://doi.org/10.1016/S0304-8853(00)00701-0
Publication status	Published - 2001
Externally published	Yes

Keywords

Electronic structure
Phase transitions-metal-insulator
Photoemission
Two-dimensional systems

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/S0304-8853(00)00701-0

Cite this

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title = "Photoemission study of the filling-control metal-insulator transition in the two-dimensional system La1.17-xPbxVS3.17",

abstract = "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.",

keywords = "Electronic structure, Phase transitions-metal-insulator, Photoemission, Two-dimensional systems",

author = "A. Ino and S. Fujimori and T. Okane and A. Fujimori and T. Mizokawa and Y. Yasui and T. Nishikawa and M. Sato",

note = "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.",

year = "2001",

doi = "10.1016/S0304-8853(00)00701-0",

language = "English",

volume = "226-230",

pages = "263--265",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "PART I",

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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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