Thermochemistry of YBa2Cu3-xMxOy (M = Ni, Zn)

Mark A. Rodriguez; Alexandra Navrotsky; Francesca Licci

doi:10.1016/S0921-4534(99)00579-1

Thermochemistry of YBa₂Cu_3-xM_xO_y (M = Ni, Zn)

Mark A. Rodriguez, Alexandra Navrotsky, Francesca Licci

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The partial molar enthalpy of incorporation of oxygen (A_ox/f) and enthalpy of formation (A_f/f) have been measured via high-temperature reaction calorimetry for YBa₂Cu_3-xM_xO_y (where M = Ni, Zn) in the composition range 0.0 < x lt; 0.18. A_ox/f and A_f /f values were nearly independent of dopant for both Ni and Zn, with enthalpies of oxidation in the range - 86 to -110 kJ/(mol 1/2O₂) and enthalpies of formation in the range -110 to -118 kJ/mol. The independence of thermodynamic behavior from superconducting properties is consistent with an electronic mechanism for T_c suppression in Zn-doped YBCO superconductors. Oxygen contents, lattice parameters, and T_c measurements are also reported.

Original language	English (US)
Pages (from-to)	88-94
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	329
Issue number	2
DOIs	https://doi.org/10.1016/S0921-4534(99)00579-1
State	Published - 2000
Externally published	Yes

Keywords

Doping
Nickel
Thermochemistry
YBaCuO-δ
Zinc

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4534(99)00579-1

Cite this

@article{32bf46f51bd2463791a2504dab594ed9,

title = "Thermochemistry of YBa2Cu3-xMxOy (M = Ni, Zn)",

abstract = "The partial molar enthalpy of incorporation of oxygen (Aox/f) and enthalpy of formation (Af/f) have been measured via high-temperature reaction calorimetry for YBa2Cu3-xMxOy (where M = Ni, Zn) in the composition range 0.0 < x lt; 0.18. Aox/f and Af /f values were nearly independent of dopant for both Ni and Zn, with enthalpies of oxidation in the range - 86 to -110 kJ/(mol 1/2O2) and enthalpies of formation in the range -110 to -118 kJ/mol. The independence of thermodynamic behavior from superconducting properties is consistent with an electronic mechanism for Tc suppression in Zn-doped YBCO superconductors. Oxygen contents, lattice parameters, and Tc measurements are also reported.",

keywords = "Doping, Nickel, Thermochemistry, YBaCuO-δ, Zinc",

author = "Rodriguez, {Mark A.} and Alexandra Navrotsky and Francesca Licci",

note = "Funding Information: This work was made possible through a grant from the US Department of Energy (DOE) under grant number DE-FG02-89ER45394.",

year = "2000",

doi = "10.1016/S0921-4534(99)00579-1",

language = "English (US)",

volume = "329",

pages = "88--94",

journal = "Physica C: Superconductivity and its applications",

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TY - JOUR

T1 - Thermochemistry of YBa2Cu3-xMxOy (M = Ni, Zn)

AU - Rodriguez, Mark A.

AU - Navrotsky, Alexandra

AU - Licci, Francesca

N1 - Funding Information: This work was made possible through a grant from the US Department of Energy (DOE) under grant number DE-FG02-89ER45394.

PY - 2000

Y1 - 2000

N2 - The partial molar enthalpy of incorporation of oxygen (Aox/f) and enthalpy of formation (Af/f) have been measured via high-temperature reaction calorimetry for YBa2Cu3-xMxOy (where M = Ni, Zn) in the composition range 0.0 < x lt; 0.18. Aox/f and Af /f values were nearly independent of dopant for both Ni and Zn, with enthalpies of oxidation in the range - 86 to -110 kJ/(mol 1/2O2) and enthalpies of formation in the range -110 to -118 kJ/mol. The independence of thermodynamic behavior from superconducting properties is consistent with an electronic mechanism for Tc suppression in Zn-doped YBCO superconductors. Oxygen contents, lattice parameters, and Tc measurements are also reported.

AB - The partial molar enthalpy of incorporation of oxygen (Aox/f) and enthalpy of formation (Af/f) have been measured via high-temperature reaction calorimetry for YBa2Cu3-xMxOy (where M = Ni, Zn) in the composition range 0.0 < x lt; 0.18. Aox/f and Af /f values were nearly independent of dopant for both Ni and Zn, with enthalpies of oxidation in the range - 86 to -110 kJ/(mol 1/2O2) and enthalpies of formation in the range -110 to -118 kJ/mol. The independence of thermodynamic behavior from superconducting properties is consistent with an electronic mechanism for Tc suppression in Zn-doped YBCO superconductors. Oxygen contents, lattice parameters, and Tc measurements are also reported.

KW - Doping

KW - Nickel

KW - Thermochemistry

KW - YBaCuO-δ

KW - Zinc

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DO - 10.1016/S0921-4534(99)00579-1

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VL - 329

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EP - 94

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 2

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