TY - JOUR
T1 - Coexistence of antiferromagnetic ordering and high-Tc superconductivity in electron-doped superconductor Nd2-xCexCuO4
AU - Uefuji, T.
AU - Kubo, T.
AU - Yamada, K.
AU - Fujita, M.
AU - Kurahashi, K.
AU - Watanabe, I.
AU - Nagamine, K.
N1 - Funding Information:
We would like to thank Y. Ikeda for his technical advice and assistance, particularly for the sample preparation and heat treatment. This work was supported by a grant-in-aid for Scientific Research from Ministry of Education, Science, Culture and Sports of Japan and by the Core Research for Evolutional Science and Technology (CREST) Project sponsored by the Japan Science and Technology Corporation.
PY - 2001/8
Y1 - 2001/8
N2 - Muon spin relaxation and magnetic susceptibility measurements were performed for the electron-doped superconductor Nd2-xCexCuO4 (NCCO) with a particular attention to the vicinity of the boundary in phase diagram between the antiferromagnetic (AF) and the superconducting phases. The obtained phase diagram clearly exhibits a competitive change in the volume fraction between the two phases around the phase boundary; a dramatic decrease of the AF phase and a sudden appearance of bulk superconductivity upon doping beyond x ∼ 0.13. However, the spatial coexistence of both phases is also suggested around the boundary. In contrast to the hole-doped system, the onset of Tc is approximately independent on the doping in the underdoped region of NCCO.
AB - Muon spin relaxation and magnetic susceptibility measurements were performed for the electron-doped superconductor Nd2-xCexCuO4 (NCCO) with a particular attention to the vicinity of the boundary in phase diagram between the antiferromagnetic (AF) and the superconducting phases. The obtained phase diagram clearly exhibits a competitive change in the volume fraction between the two phases around the phase boundary; a dramatic decrease of the AF phase and a sudden appearance of bulk superconductivity upon doping beyond x ∼ 0.13. However, the spatial coexistence of both phases is also suggested around the boundary. In contrast to the hole-doped system, the onset of Tc is approximately independent on the doping in the underdoped region of NCCO.
KW - Electron-doped system
KW - High-T superconductivity
KW - Magnetic phase diagram
KW - Muon spin relaxation
UR - http://www.scopus.com/inward/record.url?scp=0035421642&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035421642&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(01)00208-8
DO - 10.1016/S0921-4534(01)00208-8
M3 - Article
AN - SCOPUS:0035421642
SN - 0921-4534
VL - 357-360
SP - 208
EP - 211
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
ER -