Crystal growth mechanism of VLS-Sm1+xBa2-xCu3Oy films including self-assembled BaZrO3 nanorods

S. Funaki; Y. Yoshida; Y. Ichino; Y. Takai; A. Ichinose; K. Matsumoto; M. Mukaida; S. Horii; R. Kita

doi:10.1016/j.physc.2009.05.048

Crystal growth mechanism of VLS-Sm_1+xBa_2-xCu₃O_y films including self-assembled BaZrO₃ nanorods

S. Funaki, Y. Yoshida, Y. Ichino, Y. Takai, A. Ichinose, K. Matsumoto, M. Mukaida, S. Horii, R. Kita

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

1 Citation (Scopus)

Abstract

In order to improve a critical current density (J_c) under applied magnetic fields, an addition of BaMO₃ (BMO; M = Zr, Sn) nanorods into REBa₂Cu₃O_y (REBCO) films is actively discussed. Although superconducting properties of the REBCO films are dramatically enhanced by self-assembled BMO nanorods, the growth mechanisms of the BMO nanorods have not been clarified yet. In this study, in order to clarify the growth mechanisms of the BZrO₃ (BZO) nanorods and to further improve the superconducting properties, we fabricated a BZO-doped Sm_1+xBa_2-xCu₃O_y (Sm+BZO) film by using modified Vapor-Liquid-Solid (VLS) technique (VLS-Sm+BZO/i). The in-field J_c of the VLS-Sm+BZO/i film showed 4.5 times higher than that of Sm+BZO film fabricated by conventional pulsed laser deposition method (PLD-Sm+BZO) at B = 4 T and the J_c-B-θ curves of the VLS-Sm+BZO/i film was higher than that of the PLD-Sm+BZO film around the applied field angle of 40° against the c-axis of the SmBCO. From a TEM observation, we found that the BZO nanorods of VLS-Sm+BZO/i film grew discontinuously along the c-axis of the SmBCO.

Original language	English
Pages (from-to)	1414-1417
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	469
Issue number	15-20
DOIs	https://doi.org/10.1016/j.physc.2009.05.048
Publication status	Published - Oct 15 2009

All Science Journal Classification (ASJC) codes

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

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10.1016/j.physc.2009.05.048

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@article{b015f5b0ea734159b263b8e833d821e8,

title = "Crystal growth mechanism of VLS-Sm1+xBa2-xCu3Oy films including self-assembled BaZrO3 nanorods",

abstract = "In order to improve a critical current density (Jc) under applied magnetic fields, an addition of BaMO3 (BMO; M = Zr, Sn) nanorods into REBa2Cu3Oy (REBCO) films is actively discussed. Although superconducting properties of the REBCO films are dramatically enhanced by self-assembled BMO nanorods, the growth mechanisms of the BMO nanorods have not been clarified yet. In this study, in order to clarify the growth mechanisms of the BZrO3 (BZO) nanorods and to further improve the superconducting properties, we fabricated a BZO-doped Sm1+xBa2-xCu3Oy (Sm+BZO) film by using modified Vapor-Liquid-Solid (VLS) technique (VLS-Sm+BZO/i). The in-field Jc of the VLS-Sm+BZO/i film showed 4.5 times higher than that of Sm+BZO film fabricated by conventional pulsed laser deposition method (PLD-Sm+BZO) at B = 4 T and the Jc-B-θ curves of the VLS-Sm+BZO/i film was higher than that of the PLD-Sm+BZO film around the applied field angle of 40° against the c-axis of the SmBCO. From a TEM observation, we found that the BZO nanorods of VLS-Sm+BZO/i film grew discontinuously along the c-axis of the SmBCO.",

author = "S. Funaki and Y. Yoshida and Y. Ichino and Y. Takai and A. Ichinose and K. Matsumoto and M. Mukaida and S. Horii and R. Kita",

year = "2009",

month = oct,

day = "15",

doi = "10.1016/j.physc.2009.05.048",

language = "English",

volume = "469",

pages = "1414--1417",

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

issn = "0921-4534",

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number = "15-20",

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TY - JOUR

T1 - Crystal growth mechanism of VLS-Sm1+xBa2-xCu3Oy films including self-assembled BaZrO3 nanorods

AU - Funaki, S.

AU - Yoshida, Y.

AU - Ichino, Y.

AU - Takai, Y.

AU - Ichinose, A.

AU - Matsumoto, K.

AU - Mukaida, M.

AU - Horii, S.

AU - Kita, R.

PY - 2009/10/15

Y1 - 2009/10/15

N2 - In order to improve a critical current density (Jc) under applied magnetic fields, an addition of BaMO3 (BMO; M = Zr, Sn) nanorods into REBa2Cu3Oy (REBCO) films is actively discussed. Although superconducting properties of the REBCO films are dramatically enhanced by self-assembled BMO nanorods, the growth mechanisms of the BMO nanorods have not been clarified yet. In this study, in order to clarify the growth mechanisms of the BZrO3 (BZO) nanorods and to further improve the superconducting properties, we fabricated a BZO-doped Sm1+xBa2-xCu3Oy (Sm+BZO) film by using modified Vapor-Liquid-Solid (VLS) technique (VLS-Sm+BZO/i). The in-field Jc of the VLS-Sm+BZO/i film showed 4.5 times higher than that of Sm+BZO film fabricated by conventional pulsed laser deposition method (PLD-Sm+BZO) at B = 4 T and the Jc-B-θ curves of the VLS-Sm+BZO/i film was higher than that of the PLD-Sm+BZO film around the applied field angle of 40° against the c-axis of the SmBCO. From a TEM observation, we found that the BZO nanorods of VLS-Sm+BZO/i film grew discontinuously along the c-axis of the SmBCO.

AB - In order to improve a critical current density (Jc) under applied magnetic fields, an addition of BaMO3 (BMO; M = Zr, Sn) nanorods into REBa2Cu3Oy (REBCO) films is actively discussed. Although superconducting properties of the REBCO films are dramatically enhanced by self-assembled BMO nanorods, the growth mechanisms of the BMO nanorods have not been clarified yet. In this study, in order to clarify the growth mechanisms of the BZrO3 (BZO) nanorods and to further improve the superconducting properties, we fabricated a BZO-doped Sm1+xBa2-xCu3Oy (Sm+BZO) film by using modified Vapor-Liquid-Solid (VLS) technique (VLS-Sm+BZO/i). The in-field Jc of the VLS-Sm+BZO/i film showed 4.5 times higher than that of Sm+BZO film fabricated by conventional pulsed laser deposition method (PLD-Sm+BZO) at B = 4 T and the Jc-B-θ curves of the VLS-Sm+BZO/i film was higher than that of the PLD-Sm+BZO film around the applied field angle of 40° against the c-axis of the SmBCO. From a TEM observation, we found that the BZO nanorods of VLS-Sm+BZO/i film grew discontinuously along the c-axis of the SmBCO.

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 15-20

ER -

Crystal growth mechanism of VLS-Sm_1+xBa_2-xCu₃O_y films including self-assembled BaZrO₃ nanorods

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