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.
N1 - Funding Information:
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).
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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U2 - 10.1016/S0921-4534(03)01233-4
DO - 10.1016/S0921-4534(03)01233-4
M3 - Conference article
AN - SCOPUS:0043192567
SN - 0921-4534
VL - 392-396
SP - 216
EP - 220
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - PART 1
T2 - Proceedings of the 15th International Symposium on Superconduc
Y2 - 11 November 2002 through 13 November 2002
ER -