An investigation of the effect of self-assembled 3-dimensional BaZrO<sub>3</sub> nanostructures on the critical current density of second-generation superconducting coated conductors.

ORAL

Abstract

This study investigates the GdBa2Cu3O7–x (Gd123) films with several types of self-assembled BaZrO3 (BZO) nanostructure on the ion-beam-assisted deposited MgO (I-BAD) buffered with LaSrMnO3 substrate by the pulsed laser deposition (PLD). The sample with additionally In-situ annealing between the BZO-doped-Gd123/BZO multilayer, the BZO-doped Gd123, and the BZO bilayer, reveals a three-dimensional (3D) BZO nanostructure network in the Gd123 matrix system, Which tremendously boosted the flux pinning force (Fp) and critical current density (JC) under high magnetic fields along the ab-plane and c-axis. The studies on the resistance variation near transition temperature and the flux dynamic show that the flux pinning in the coated conductor with a 3D BZO nanostructure network is more 3D-like. This 3D BZO nanostructure network helps to coated conductor’s performance in JC (extracted from transport and magnetic data) and angular dependence at the high magnetic field is superior to the current reported results, it could be further enhanced by optimizing BZO nanostructure conditions.

*The authors thank Academia Sinica for the Taiwan International Graduate Program (TIGP). We also acknowledge the Institute of Physics and Core Facility Center of National Cheng Kung University for supporting most of the structure, transport, and morphology characterizations. SuNAM Co., Ltd. for providing the costly I-BAD Ni–W substrate.

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Publication: NA

Presenters

  • GANTEPOGU CHANDRA SHEKAR

    • Institute of physics

Authors

  • GANTEPOGU CHANDRA SHEKAR

    • Institute of physics

  • Chia-Ming Yang

    • National Cheng Kung University, Taiwan

  • Peramaiyan Ganesan

    • institute of Physics, Academia Sinica, Taipei, Taiwan

  • In-Gann Chen

    • National Cheng Kung University, Taiwan

  • Ming-Jye Wang

    • Institute of Astronomy and Astrophysics, Academia Sinica, Taipei, Taiwan

  • Judith L MacManus-Driscoll

    • Department of Material Science and Engineering, University of Cambridge, Cambridge, UK
    • University of Cambridge

  • Seung-Hyun Moon

    • SuNAM Co. Ltd. Seoul, South Korea

  • Connie_ Wang

    • Corporate CTO Office, Applied Materials, Santa Clara, CA, USA

  • Maw-Kuen Wu

    • Institute of Physics, Academia Sinica, Taipei, Taiwan