TY - JOUR
T1 - Magnetic properties of semiconducting Y2BaCuO5
T2 - DC susceptibility and electron paramagnetic resonance study
AU - Ong, E. W.
AU - Ramakrishna, B. L.
AU - Iqbal, Z.
PY - 1988/4
Y1 - 1988/4
N2 - The semiconducting, green Y2BaCuO5 compound, which is structurally related to the 90K superconductor YBa2Cu3O7-δ, was found to behave like a S= 1 2 Heisenberg quadratic-layer antiferromagnet with an exchange constant of 2J=33.3 ± 0.5 K. There is a peak in the susceptibility at 30 ± 0.5 K, above which it exhibits Curie-Weiss behavior with the Weiss constant estimated at +55.4 K. The local symmetry around the copper (II) ions was found to be rhombic. The orbital reduction factor for Cu2+ in this compound was estimated to be k=0.52, indicating appreciable covalency in the Cu-O bonds.
AB - The semiconducting, green Y2BaCuO5 compound, which is structurally related to the 90K superconductor YBa2Cu3O7-δ, was found to behave like a S= 1 2 Heisenberg quadratic-layer antiferromagnet with an exchange constant of 2J=33.3 ± 0.5 K. There is a peak in the susceptibility at 30 ± 0.5 K, above which it exhibits Curie-Weiss behavior with the Weiss constant estimated at +55.4 K. The local symmetry around the copper (II) ions was found to be rhombic. The orbital reduction factor for Cu2+ in this compound was estimated to be k=0.52, indicating appreciable covalency in the Cu-O bonds.
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U2 - 10.1016/0038-1098(88)90804-6
DO - 10.1016/0038-1098(88)90804-6
M3 - Article
AN - SCOPUS:0023994926
SN - 0038-1098
VL - 66
SP - 171
EP - 175
JO - Solid State Communications
JF - Solid State Communications
IS - 2
ER -