Metal-insulator transition and pseudogap in Bi1.76Pb0.35Sr1.89CuO6+δ high- Tc cuprates

M. Miyazaki; R. Kadono; M. Hiraishi; A. Koda; K. M. Kojima; Y. Fukunaga; Y. Tanabe; T. Adachi; Y. Koike

doi:10.1103/PhysRevB.94.115123

Metal-insulator transition and pseudogap in Bi1.76Pb0.35Sr1.89CuO6+δ high- Tc cuprates

M. Miyazaki, R. Kadono, M. Hiraishi, A. Koda, K. M. Kojima, Y. Fukunaga, Y. Tanabe, T. Adachi, Y. Koike

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

Abstract

It is inferred from bulk-sensitive muon Knight shift measurement for a Bi1.76Pb0.35Sr1.89CuO6+δ single-layer cuprate that the metal-insulator (MI) transition (in the low-temperature limit, T→0) occurs at the critical hole concentration p=pMI=0.09(1), where the electronic density of states (DOS) at the Fermi level is reduced to zero by the pseudogap irrespective of the Néel order or spin glass magnetism. Superconductivity also appears for p>pMI, suggesting that this feature is controlled by the MI transition. More interestingly, the magnitude of the DOS reduction induced by the pseudogap remains unchanged over a wide doping range (0.1≤p≤0.2), indicating that the pseudogap remains as a hallmark of the MI transition for p>pMI.

Original language	English
Article number	115123
Journal	Physical Review B
Volume	94
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevB.94.115123
Publication status	Published - 2016 Sep 9

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.94.115123

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title = "Metal-insulator transition and pseudogap in Bi1.76Pb0.35Sr1.89CuO6+δ high- Tc cuprates",

abstract = "It is inferred from bulk-sensitive muon Knight shift measurement for a Bi1.76Pb0.35Sr1.89CuO6+δ single-layer cuprate that the metal-insulator (MI) transition (in the low-temperature limit, T→0) occurs at the critical hole concentration p=pMI=0.09(1), where the electronic density of states (DOS) at the Fermi level is reduced to zero by the pseudogap irrespective of the N{\'e}el order or spin glass magnetism. Superconductivity also appears for p>pMI, suggesting that this feature is controlled by the MI transition. More interestingly, the magnitude of the DOS reduction induced by the pseudogap remains unchanged over a wide doping range (0.1≤p≤0.2), indicating that the pseudogap remains as a hallmark of the MI transition for p>pMI.",

author = "M. Miyazaki and R. Kadono and M. Hiraishi and A. Koda and Kojima, {K. M.} and Y. Fukunaga and Y. Tanabe and T. Adachi and Y. Koike",

note = "Funding Information: This work was partially supported by the KEK-MSL Inter-University Program for Overseas Muon Facilities and a Grant-in-Aid for Scientific Research on Priority Areas (Grant No. 16076211) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = sep,

day = "9",

doi = "10.1103/PhysRevB.94.115123",

language = "English",

volume = "94",

journal = "Physical Review B",

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T1 - Metal-insulator transition and pseudogap in Bi1.76Pb0.35Sr1.89CuO6+δ high- Tc cuprates

AU - Miyazaki, M.

AU - Kadono, R.

AU - Hiraishi, M.

AU - Koda, A.

AU - Kojima, K. M.

AU - Fukunaga, Y.

AU - Tanabe, Y.

AU - Adachi, T.

AU - Koike, Y.

N1 - Funding Information: This work was partially supported by the KEK-MSL Inter-University Program for Overseas Muon Facilities and a Grant-in-Aid for Scientific Research on Priority Areas (Grant No. 16076211) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. Publisher Copyright: © 2016 American Physical Society.

PY - 2016/9/9

Y1 - 2016/9/9

N2 - It is inferred from bulk-sensitive muon Knight shift measurement for a Bi1.76Pb0.35Sr1.89CuO6+δ single-layer cuprate that the metal-insulator (MI) transition (in the low-temperature limit, T→0) occurs at the critical hole concentration p=pMI=0.09(1), where the electronic density of states (DOS) at the Fermi level is reduced to zero by the pseudogap irrespective of the Néel order or spin glass magnetism. Superconductivity also appears for p>pMI, suggesting that this feature is controlled by the MI transition. More interestingly, the magnitude of the DOS reduction induced by the pseudogap remains unchanged over a wide doping range (0.1≤p≤0.2), indicating that the pseudogap remains as a hallmark of the MI transition for p>pMI.

AB - It is inferred from bulk-sensitive muon Knight shift measurement for a Bi1.76Pb0.35Sr1.89CuO6+δ single-layer cuprate that the metal-insulator (MI) transition (in the low-temperature limit, T→0) occurs at the critical hole concentration p=pMI=0.09(1), where the electronic density of states (DOS) at the Fermi level is reduced to zero by the pseudogap irrespective of the Néel order or spin glass magnetism. Superconductivity also appears for p>pMI, suggesting that this feature is controlled by the MI transition. More interestingly, the magnitude of the DOS reduction induced by the pseudogap remains unchanged over a wide doping range (0.1≤p≤0.2), indicating that the pseudogap remains as a hallmark of the MI transition for p>pMI.

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Metal-insulator transition and pseudogap in Bi1.76Pb0.35Sr1.89CuO6+δ high- Tc cuprates

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