Characterization of Ni-Doped BST Thin Films on LSCO Buffer Layers Prepared by Pulsed Laser Deposition

Hyun Suk Kim; Mi Hwa Lim; Ho Gi Kim; Il Doo Kim

doi:10.1149/1.1635094

Characterization of Ni-Doped BST Thin Films on LSCO Buffer Layers Prepared by Pulsed Laser Deposition

Hyun Suk Kim, Mi Hwa Lim, Ho Gi Kim, Il Doo Kim

Department of Energy and Materials Engineering

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

19 Scopus citations

Abstract

We report on the effect of Ni doping on the tunability and dielectric loss of perovskite Ba_0.6Sr_0.4TiO₃ (BST) thin films with the change of Ni doping concentration. BST thin films were deposited on Pt/Ti/SiO₂/Si and La_0.5Sr_0.5CoO₃ (LSCO)/Pt/SiO₂/Si substrates by pulsed laser deposition. At an applied electric field of 143 kV/cm, the tunability values of BST films grown on Pt and LSCO/Pt were 12.6 and 62.8% at 100 kHz, respectively. The Ni doping effects were studied for BST thin films grown on LSCO buffer layer. With 1% Ni-doped BST thin films, results gave a tunability of 54.2%, a loss tangent as low as 0.0183, and a figure of merit of about 30. This work demonstrates a potential use for 1 mol % Ni- doped BST thin films in tunable microwave devices.

Original language	English
Pages (from-to)	J1-J3
Journal	Electrochemical and Solid-State Letters
Volume	7
Issue number	2
DOIs	https://doi.org/10.1149/1.1635094
State	Published - 2004

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title = "Characterization of Ni-Doped BST Thin Films on LSCO Buffer Layers Prepared by Pulsed Laser Deposition",

abstract = "We report on the effect of Ni doping on the tunability and dielectric loss of perovskite Ba0.6Sr0.4TiO3 (BST) thin films with the change of Ni doping concentration. BST thin films were deposited on Pt/Ti/SiO2/Si and La0.5Sr0.5CoO3 (LSCO)/Pt/SiO2/Si substrates by pulsed laser deposition. At an applied electric field of 143 kV/cm, the tunability values of BST films grown on Pt and LSCO/Pt were 12.6 and 62.8% at 100 kHz, respectively. The Ni doping effects were studied for BST thin films grown on LSCO buffer layer. With 1% Ni-doped BST thin films, results gave a tunability of 54.2%, a loss tangent as low as 0.0183, and a figure of merit of about 30. This work demonstrates a potential use for 1 mol % Ni- doped BST thin films in tunable microwave devices.",

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T1 - Characterization of Ni-Doped BST Thin Films on LSCO Buffer Layers Prepared by Pulsed Laser Deposition

AU - Kim, Hyun Suk

AU - Lim, Mi Hwa

AU - Kim, Ho Gi

AU - Kim, Il Doo

PY - 2004

Y1 - 2004

N2 - We report on the effect of Ni doping on the tunability and dielectric loss of perovskite Ba0.6Sr0.4TiO3 (BST) thin films with the change of Ni doping concentration. BST thin films were deposited on Pt/Ti/SiO2/Si and La0.5Sr0.5CoO3 (LSCO)/Pt/SiO2/Si substrates by pulsed laser deposition. At an applied electric field of 143 kV/cm, the tunability values of BST films grown on Pt and LSCO/Pt were 12.6 and 62.8% at 100 kHz, respectively. The Ni doping effects were studied for BST thin films grown on LSCO buffer layer. With 1% Ni-doped BST thin films, results gave a tunability of 54.2%, a loss tangent as low as 0.0183, and a figure of merit of about 30. This work demonstrates a potential use for 1 mol % Ni- doped BST thin films in tunable microwave devices.

AB - We report on the effect of Ni doping on the tunability and dielectric loss of perovskite Ba0.6Sr0.4TiO3 (BST) thin films with the change of Ni doping concentration. BST thin films were deposited on Pt/Ti/SiO2/Si and La0.5Sr0.5CoO3 (LSCO)/Pt/SiO2/Si substrates by pulsed laser deposition. At an applied electric field of 143 kV/cm, the tunability values of BST films grown on Pt and LSCO/Pt were 12.6 and 62.8% at 100 kHz, respectively. The Ni doping effects were studied for BST thin films grown on LSCO buffer layer. With 1% Ni-doped BST thin films, results gave a tunability of 54.2%, a loss tangent as low as 0.0183, and a figure of merit of about 30. This work demonstrates a potential use for 1 mol % Ni- doped BST thin films in tunable microwave devices.

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DO - 10.1149/1.1635094

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VL - 7

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JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

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ER -

Characterization of Ni-Doped BST Thin Films on LSCO Buffer Layers Prepared by Pulsed Laser Deposition

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