TY - JOUR
T1 - High-resolution powder neutron diffraction study of ndi.93ceo.o7cu04_8. no evidence for phase separation at this composition.
AU - Rosseinsky, M. J.
AU - Prassides, K.
PY - 1991/3/15
Y1 - 1991/3/15
N2 - Very high-resolution powder neutron diffraction has been employed to study the crystal structure of the T phase Ndi.98Ce0.07CuO4_i at room temperature. No evidence for multiphase composition is found at this resolution and a single phase model based on the tetragonal M/mmm space group is in excellent agreement with the experimental data. It appears that the possible occurrence of phase separation at higher dopant levels may be related to the metal-insulator transition which occurs close to the onset of superconductivity and after the long-range antiferromagnetic order is destroyed.
AB - Very high-resolution powder neutron diffraction has been employed to study the crystal structure of the T phase Ndi.98Ce0.07CuO4_i at room temperature. No evidence for multiphase composition is found at this resolution and a single phase model based on the tetragonal M/mmm space group is in excellent agreement with the experimental data. It appears that the possible occurrence of phase separation at higher dopant levels may be related to the metal-insulator transition which occurs close to the onset of superconductivity and after the long-range antiferromagnetic order is destroyed.
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U2 - 10.1209/0295-5075/14/6/009
DO - 10.1209/0295-5075/14/6/009
M3 - Article
AN - SCOPUS:84913475959
SN - 0295-5075
VL - 14
SP - 551
EP - 556
JO - Journal de Physique (Paris), Lettres
JF - Journal de Physique (Paris), Lettres
IS - 6
ER -