Evolution of the electronic state through the reduction annealing in electron-doped Pr1.3-xLa0.7CexCuO 4+δ (x = 0:10) single crystals: Antiferromagnetism, kondo effect, and superconductivity

Tadashi Adachi; Yosuke Mori; Akira Takahashi; Masatsune Kato; Terukazu Nishizaki; Takahiko Sasaki; Norio Kobayashi; Yoji Koike

doi:10.7566/JPSJ.82.063713

Evolution of the electronic state through the reduction annealing in electron-doped Pr_1.3-xLa_0.7Ce_xCuO _4+δ (x = 0:10) single crystals: Antiferromagnetism, kondo effect, and superconductivity

Tadashi Adachi, Yosuke Mori, Akira Takahashi, Masatsune Kato, Terukazu Nishizaki, Takahiko Sasaki, Norio Kobayashi, Yoji Koike

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

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Abstract

The evolution of the electronic state through the reduction annealing has been investigated in electron-doped Pr_1.3-xLa_0.7Ce _xCuO_4+δ (x = 0:10) single crystals with the so-called T0 structure. From the ab-plane and c-axis electrical resistivity measurements in magnetic fields, it has been found that, through the reduction annealing, the strongly localized state of carriers accompanied by the antiferromagnetic (AF) pseudogap in the as-grown crystal changes to a metallic state bringing about the Kondo effect without AF pseudogap and to a superconducting state. These results are able to be understood in terms of a model based on the strong electron correlation. The complete removal of excess oxygen in the T0-cuprates is expected to result in the appearance of superconductivity in a wide range of the Ce concentration including the parent compound of x 1/4 0.

Original language	English
Article number	063713
Journal	Journal of the Physical Society of Japan
Volume	82
Issue number	6
DOIs	https://doi.org/10.7566/JPSJ.82.063713
Publication status	Published - 2013 Jun

Keywords

Electron-doped cuprate
Kondo effect
Reduction annealing
Superconductivity
T' structure

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Adachi, T., Mori, Y., Takahashi, A., Kato, M., Nishizaki, T., Sasaki, T., Kobayashi, N., & Koike, Y. (2013). Evolution of the electronic state through the reduction annealing in electron-doped Pr_1.3-xLa_0.7Ce_xCuO _4+δ (x = 0:10) single crystals: Antiferromagnetism, kondo effect, and superconductivity. Journal of the Physical Society of Japan, 82(6), Article 063713. https://doi.org/10.7566/JPSJ.82.063713

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title = "Evolution of the electronic state through the reduction annealing in electron-doped Pr1.3-xLa0.7CexCuO 4+δ (x = 0:10) single crystals: Antiferromagnetism, kondo effect, and superconductivity",

abstract = "The evolution of the electronic state through the reduction annealing has been investigated in electron-doped Pr1.3-xLa0.7Ce xCuO4+δ (x = 0:10) single crystals with the so-called T0 structure. From the ab-plane and c-axis electrical resistivity measurements in magnetic fields, it has been found that, through the reduction annealing, the strongly localized state of carriers accompanied by the antiferromagnetic (AF) pseudogap in the as-grown crystal changes to a metallic state bringing about the Kondo effect without AF pseudogap and to a superconducting state. These results are able to be understood in terms of a model based on the strong electron correlation. The complete removal of excess oxygen in the T0-cuprates is expected to result in the appearance of superconductivity in a wide range of the Ce concentration including the parent compound of x 1/4 0.",

keywords = "Electron-doped cuprate, Kondo effect, Reduction annealing, Superconductivity, T' structure",

author = "Tadashi Adachi and Yosuke Mori and Akira Takahashi and Masatsune Kato and Terukazu Nishizaki and Takahiko Sasaki and Norio Kobayashi and Yoji Koike",

year = "2013",

month = jun,

doi = "10.7566/JPSJ.82.063713",

language = "English",

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Adachi, T, Mori, Y, Takahashi, A, Kato, M, Nishizaki, T, Sasaki, T, Kobayashi, N & Koike, Y 2013, 'Evolution of the electronic state through the reduction annealing in electron-doped Pr_1.3-xLa_0.7Ce_xCuO _4+δ (x = 0:10) single crystals: Antiferromagnetism, kondo effect, and superconductivity', Journal of the Physical Society of Japan, vol. 82, no. 6, 063713. https://doi.org/10.7566/JPSJ.82.063713

Evolution of the electronic state through the reduction annealing in electron-doped Pr_1.3-xLa_0.7Ce_xCuO _4+δ (x = 0:10) single crystals: Antiferromagnetism, kondo effect, and superconductivity. / Adachi, Tadashi; Mori, Yosuke; Takahashi, Akira et al.
In: Journal of the Physical Society of Japan, Vol. 82, No. 6, 063713, 06.2013.

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

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T1 - Evolution of the electronic state through the reduction annealing in electron-doped Pr1.3-xLa0.7CexCuO 4+δ (x = 0:10) single crystals

T2 - Antiferromagnetism, kondo effect, and superconductivity

AU - Adachi, Tadashi

AU - Mori, Yosuke

AU - Takahashi, Akira

AU - Kato, Masatsune

AU - Nishizaki, Terukazu

AU - Sasaki, Takahiko

AU - Kobayashi, Norio

AU - Koike, Yoji

PY - 2013/6

Y1 - 2013/6

N2 - The evolution of the electronic state through the reduction annealing has been investigated in electron-doped Pr1.3-xLa0.7Ce xCuO4+δ (x = 0:10) single crystals with the so-called T0 structure. From the ab-plane and c-axis electrical resistivity measurements in magnetic fields, it has been found that, through the reduction annealing, the strongly localized state of carriers accompanied by the antiferromagnetic (AF) pseudogap in the as-grown crystal changes to a metallic state bringing about the Kondo effect without AF pseudogap and to a superconducting state. These results are able to be understood in terms of a model based on the strong electron correlation. The complete removal of excess oxygen in the T0-cuprates is expected to result in the appearance of superconductivity in a wide range of the Ce concentration including the parent compound of x 1/4 0.

AB - The evolution of the electronic state through the reduction annealing has been investigated in electron-doped Pr1.3-xLa0.7Ce xCuO4+δ (x = 0:10) single crystals with the so-called T0 structure. From the ab-plane and c-axis electrical resistivity measurements in magnetic fields, it has been found that, through the reduction annealing, the strongly localized state of carriers accompanied by the antiferromagnetic (AF) pseudogap in the as-grown crystal changes to a metallic state bringing about the Kondo effect without AF pseudogap and to a superconducting state. These results are able to be understood in terms of a model based on the strong electron correlation. The complete removal of excess oxygen in the T0-cuprates is expected to result in the appearance of superconductivity in a wide range of the Ce concentration including the parent compound of x 1/4 0.

KW - Electron-doped cuprate

KW - Kondo effect

KW - Reduction annealing

KW - Superconductivity

KW - T' structure

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Evolution of the electronic state through the reduction annealing in electron-doped Pr_1.3-xLa_0.7Ce_xCuO _4+δ (x = 0:10) single crystals: Antiferromagnetism, kondo effect, and superconductivity

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