Statistical Description of High-Voltage Pulse Trimming of RuO2 and Bi2Ru2O7-Based Thick Resistive Films

Stanimirovic, Z.; Stanimirovic, I.

doi:10.1109/ted.2019.2957020

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Metallic Bi 2 Ru 2 O 7 is widely used as a thick film resistor [29][30][31], and has further applications as a catalyst [32], a cathode material for solid oxide fuel cells [33,34], an electrode for pyrochlore based dielectric material such as Bi 1.5 Zn 1.0 Nb 1.5 O 7 [35] and has been predicted to host fragile band topology [36]. Although the electrical properties of polycrystalline films have been previously studied in detail [29,37] there are limited studies dedicated to heteroepitaxial Bi 2 Ru 2 O 7 thin film growth focusing on (111) oriented heterostructures prepared by chemical vapor deposition methods [35,38].…”

Section: Introductionmentioning

confidence: 99%

Epitaxial growth, optical and electrical conductivity of the metallic pyrochlore Bi$_2$Ru$_2$O$_7$ on Y-stabilized ZrO$_2$ substrate

O’Sullivan¹,

Alaria²,

Gaultois³

et al. 2023

Preprint

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Epitaxial heterostructures composed of complex correlated metal oxides grown along specific crystallographic orientations offer a route to investigating emergent phenomena such as topological states and spin liquids through geometrical lattice engineering. A 2 Ru 2 O 7 pyrochlore ruthenates in particular exhibit a metal-insulator transition with varying A cation whose mechanism is not fully understood. We report on the epitaxial growth, structural and electrical properties of metallic pyrochlore bismuth ruthenate heterostructures grown along both the [001] and [111] directions.Ordered pyrochlore thin films were obtained with highly oriented texture along the [001] and [111] crystallographic directions. Density functional theory calculations of the electronic band structure and density of states indicated that Bi 2 Ru 2 O 7 is semimetallic and that hybridization of the Ru 4d and Bi 6p orbitals via the anion network at the Fermi energy was responsible for the metallicity.Electrical conductivity measurements confirmed that the compound is weakly metallic in agreement with the reported conductivity for the stoichiometric bulk compound. The carrier concentration and mobility of the electrons compared favorably with previous reports on bulk material and indicate strong electron-electron interactions. The measured and computed optical conductivities were found to share coincident spectral features and confirm the electronic correlation. Comparison of the electrical and optical properties of the two distinct orientations indicates differences that cannot be attributed to differences in crystalline quality or dislocations and may indicate anisotropy in the electronic structure of Bi 2 Ru 2 O 7 . This study will enable access to the kagome lattice arising naturally in the 111 planes of the pyrochlore B cation sublattice which may be used to uncover emergent topological properties.

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Section: Introductionmentioning

confidence: 99%

Epitaxial growth, optical and electrical conductivity of the metallic pyrochlore Bi$_2$Ru$_2$O$_7$ on Y-stabilized ZrO$_2$ substrate

O’Sullivan¹,

Alaria²,

Gaultois³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

High–performance copper–substituted La0.5Sr0.5CoO3 ceramics as economical functional materials for thick film resistors

Lu,

Li,

et al. 2024

Ceramics International

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Epitaxial growth, optical and electrical conductivity of the metallic pyrochlore Bi2Ru2O7 on Y-stabilized ZrO2 substrate

et al. 2023

View full text Add to dashboard Cite

Epitaxial heterostructures composed of complex correlated metal oxides, grown along specific crystallographic orientations, offer a route to investigating emergent phenomena such as topological states and spin liquids through geometrical lattice engineering. A2Ru2O7 pyrochlore ruthenates, in particular, exhibit a metal–insulator transition with varying A cation, whose mechanism is not fully understood. We report on the epitaxial growth, and structural and electrical properties of metallic pyrochlore bismuth ruthenate heterostructures, grown along both the [001] and [111] directions. Ordered pyrochlore thin films were obtained with a highly oriented texture along the [001] and [111] crystallographic directions. Density functional theory calculations of the electronic band structure and density of states indicated that Bi2Ru2O7 is semimetallic and that hybridization of the Ru 4d and Bi 6p orbitals via the anion network at the Fermi energy was responsible for the metallicity. Electrical conductivity measurements confirmed that the compound is weakly metallic, in agreement with the reported conductivity for the stoichiometric bulk compound. The carrier concentration and mobility of the electrons compared favorably with previous reports on bulk material and indicate strong electron–electron interactions. The measured and computed optical conductivities were found to share coincident spectral features and confirm the electronic correlation. Comparison of the electrical and optical properties of the two distinct orientations indicates differences that cannot be attributed to differences in crystalline quality or dislocations and may indicate anisotropy in the electronic structure of Bi2Ru2O7. This study will enable access to the kagome lattice arising naturally in the 111 planes of the pyrochlore B cation sublattice, which may be used to uncover emergent topological properties.

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Statistical Description of High-Voltage Pulse Trimming of RuO₂ and Bi₂Ru₂O₇-Based Thick Resistive Films

Cited by 3 publications

References 12 publications

Epitaxial growth, optical and electrical conductivity of the metallic pyrochlore Bi$_2$Ru$_2$O$_7$ on Y-stabilized ZrO$_2$ substrate

Epitaxial growth, optical and electrical conductivity of the metallic pyrochlore Bi$_2$Ru$_2$O$_7$ on Y-stabilized ZrO$_2$ substrate

High–performance copper–substituted La0.5Sr0.5CoO3 ceramics as economical functional materials for thick film resistors

Epitaxial growth, optical and electrical conductivity of the metallic pyrochlore Bi2Ru2O7 on Y-stabilized ZrO2 substrate

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