Phase diagram of the electron-doped superconductor Pr 1-xLaCexCuO4-δ

S. Kuroshima; M. Fujita; T. Uefuji; M. Matsuda; K. Yamada

doi:10.1016/S0921-4534(03)01233-4

Phase diagram of the electron-doped superconductor Pr _1-xLaCe_xCuO_4-δ

S. Kuroshima, M. Fujita, T. Uefuji, M. Matsuda, K. Yamada

Research output: Contribution to journal › Conference article › peer-review

12 Scopus citations

Abstract

Systematic measurements of magnetic susceptibility and neutron diffraction were performed on both as-grown and oxygen-reduced single crystals of Pr _1-xLaCe_xCuO_4-δ (x = 0.09, 0.11, 0.15 and 0.18) in order to study the electronic phase diagram as functions of both x and δ. Antiferromagnetic ordered phase appears in the x = 0.09 and 0.11 samples for small value of δ at low temperature and degrades by either increasing Ce concentration or δ. Bulk superconductivity was observed in the wider x and δ region compared to that of Nd_2-xCe _xCuO₄. A spin-glass-like phase appears in the limited region of δ in between 0.003 and 0.04, which weakly depends on x. Combining both results from susceptibility and neutron scattering measurement, we have obtained x-δ phase diagram of Pr_1-xLaCe _xCuO_4-δ.

Original language	English
Pages (from-to)	216-220
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	392-396
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4534(03)01233-4
State	Published - Oct 2003
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Superconduc - Yokohama, Japan Duration: Nov 11 2002 → Nov 13 2002

Funding

We thank M. Kufu and K. Hirota for technical assistance of ICP measurements at Tohoku University. This work was supported in part by the Japanese Ministry of Education, Culture, Sports, Science and Technology, Grant-in-Aid for Scientific Research on Priority Areas (Novel Quantum Phenomena in Transition Metal Oxides), 12046239, 2000, for Scientific Research (A), 10304026, 2000, for Encouragement of Young Scientists, 13740216, 2001 and for Creative Scientific Research (13NP0201) “Collaboratory on Electron Correlations––Toward a New Research Network between Physics and Chemistry”, by the Japan Science and Technology Corporation, the Core Research for Evolutional Science and Technology Project (CREST).

Funders	Funder number
Japan Science and Technology Corporation
Ministry of Education, Culture, Sports, Science and Technology	13740216, 10304026, 12046239, 13NP0201
Core Research for Evolutional Science and Technology

Keywords

Electron-doped cuprate
High-T superconductivity
Phase diagram

Access to Document

10.1016/S0921-4534(03)01233-4

Cite this

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title = "Phase diagram of the electron-doped superconductor Pr 1-xLaCexCuO4-δ",

abstract = "Systematic measurements of magnetic susceptibility and neutron diffraction were performed on both as-grown and oxygen-reduced single crystals of Pr 1-xLaCexCuO4-δ (x = 0.09, 0.11, 0.15 and 0.18) in order to study the electronic phase diagram as functions of both x and δ. Antiferromagnetic ordered phase appears in the x = 0.09 and 0.11 samples for small value of δ at low temperature and degrades by either increasing Ce concentration or δ. Bulk superconductivity was observed in the wider x and δ region compared to that of Nd2-xCe xCuO4. A spin-glass-like phase appears in the limited region of δ in between 0.003 and 0.04, which weakly depends on x. Combining both results from susceptibility and neutron scattering measurement, we have obtained x-δ phase diagram of Pr1-xLaCe xCuO4-δ.",

keywords = "Electron-doped cuprate, High-T superconductivity, Phase diagram",

author = "S. Kuroshima and M. Fujita and T. Uefuji and M. Matsuda and K. Yamada",

year = "2003",

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doi = "10.1016/S0921-4534(03)01233-4",

language = "English",

volume = "392-396",

pages = "216--220",

journal = "Physica C: Superconductivity and its Applications",

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note = "Proceedings of the 15th International Symposium on Superconduc ; Conference date: 11-11-2002 Through 13-11-2002",

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TY - JOUR

T1 - Phase diagram of the electron-doped superconductor Pr 1-xLaCexCuO4-δ

AU - Kuroshima, S.

AU - Fujita, M.

AU - Uefuji, T.

AU - Matsuda, M.

AU - Yamada, K.

PY - 2003/10

Y1 - 2003/10

N2 - Systematic measurements of magnetic susceptibility and neutron diffraction were performed on both as-grown and oxygen-reduced single crystals of Pr 1-xLaCexCuO4-δ (x = 0.09, 0.11, 0.15 and 0.18) in order to study the electronic phase diagram as functions of both x and δ. Antiferromagnetic ordered phase appears in the x = 0.09 and 0.11 samples for small value of δ at low temperature and degrades by either increasing Ce concentration or δ. Bulk superconductivity was observed in the wider x and δ region compared to that of Nd2-xCe xCuO4. A spin-glass-like phase appears in the limited region of δ in between 0.003 and 0.04, which weakly depends on x. Combining both results from susceptibility and neutron scattering measurement, we have obtained x-δ phase diagram of Pr1-xLaCe xCuO4-δ.

AB - Systematic measurements of magnetic susceptibility and neutron diffraction were performed on both as-grown and oxygen-reduced single crystals of Pr 1-xLaCexCuO4-δ (x = 0.09, 0.11, 0.15 and 0.18) in order to study the electronic phase diagram as functions of both x and δ. Antiferromagnetic ordered phase appears in the x = 0.09 and 0.11 samples for small value of δ at low temperature and degrades by either increasing Ce concentration or δ. Bulk superconductivity was observed in the wider x and δ region compared to that of Nd2-xCe xCuO4. A spin-glass-like phase appears in the limited region of δ in between 0.003 and 0.04, which weakly depends on x. Combining both results from susceptibility and neutron scattering measurement, we have obtained x-δ phase diagram of Pr1-xLaCe xCuO4-δ.

KW - Electron-doped cuprate

KW - High-T superconductivity

KW - Phase diagram

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