Magnetic properties of semiconducting Y2BaCuO5: DC susceptibility and electron paramagnetic resonance study

E. W. Ong; B. L. Ramakrishna; Z. Iqbal

doi:10.1016/0038-1098(88)90804-6

Magnetic properties of semiconducting Y₂BaCuO₅: DC susceptibility and electron paramagnetic resonance study

E. W. Ong, B. L. Ramakrishna, Z. Iqbal

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Abstract

The semiconducting, green Y₂BaCuO₅ compound, which is structurally related to the 90K superconductor YBa₂Cu₃O_7-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.

Original language	English (US)
Pages (from-to)	171-175
Number of pages	5
Journal	Solid State Communications
Volume	66
Issue number	2
DOIs	https://doi.org/10.1016/0038-1098(88)90804-6
State	Published - Apr 1988
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

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title = "Magnetic properties of semiconducting Y2BaCuO5: DC susceptibility and electron paramagnetic resonance study",

abstract = "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.",

author = "Ong, \{E. W.\} and Ramakrishna, \{B. L.\} and Z. Iqbal",

year = "1988",

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doi = "10.1016/0038-1098(88)90804-6",

language = "English (US)",

volume = "66",

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journal = "Solid State Communications",

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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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JO - Solid State Communications

JF - Solid State Communications

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ER -

Magnetic properties of semiconducting Y₂BaCuO₅: DC susceptibility and electron paramagnetic resonance study

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