TY - JOUR
T1 - Effect of Surface Liquid Layer during Film Growth on Morphology of BaHfO3in YBa2Cu3OyCoated Conductors Fabricated by Pulsed Laser Deposition
AU - Ito, Tomohiro
AU - Ichino, Yusuke
AU - Tsuchiya, Yuji
AU - Yasuda, Kento
AU - Ichinose, Ataru
AU - Yoshida, Yutaka
N1 - Funding Information:
Manuscript received November 26, 2020; revised February 12, 2021, March 10, 2021, and March 30, 2021; accepted March 30, 2021. Date of publication April 6, 2021; date of current version May 20, 2021. This work was supported in part by JST-A-STEP, NEDO, Iketani Science and Technology Foundation and JSPS KAKENHI under Grants 19K22154, 20H02682 and 20K15217. The IBAD-MgO metal substrate were provided from Dr. Izumi, Dr. Machi and Dr. Ibi at AIST. (Corresponding author: Tomohiro Ito.) Tomohiro Ito, Yuji Tsuchiya, Kento Yasuda, and Yutaka Yoshida are with the Department of Electrical Engineering, Nagoya University, Aichi 464-8603, Japan (e-mail: ito.tomohiro@c.mbox.nagoya-u.ac.jp).
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2021/8
Y1 - 2021/8
N2 - The Vapor-Liquid-Solid (VLS) growth technique, which combines the Pulsed Laser Deposition (PLD) method with the Liquid Phase Epitaxy (LPE), is expected to achieve both high deposition rate and high crystallinities. To apply superconducting Coated Conductors (CCs) for applications such as superconducting magnets, it is indispensable to introduce Artificial Pinning Centers (APCs) such as BaHfO3(BHO). In this study, we aim to achieve high deposition rate, crystalline orientation, and APCs by using VLS growth technique. As a result, we confirmed that BHO was introduced without deterioration of crystallinities. Furthermore, critical current density Jcin magnetic fields of the BHO-doped VLS-YBCO was improved at various temperatures compared with a sample fabricated by the PLD method. However, discontinuous BHO nanorods were observed in the BHO-doped VLS-YBCO from TEM and EDX mapping.
AB - The Vapor-Liquid-Solid (VLS) growth technique, which combines the Pulsed Laser Deposition (PLD) method with the Liquid Phase Epitaxy (LPE), is expected to achieve both high deposition rate and high crystallinities. To apply superconducting Coated Conductors (CCs) for applications such as superconducting magnets, it is indispensable to introduce Artificial Pinning Centers (APCs) such as BaHfO3(BHO). In this study, we aim to achieve high deposition rate, crystalline orientation, and APCs by using VLS growth technique. As a result, we confirmed that BHO was introduced without deterioration of crystallinities. Furthermore, critical current density Jcin magnetic fields of the BHO-doped VLS-YBCO was improved at various temperatures compared with a sample fabricated by the PLD method. However, discontinuous BHO nanorods were observed in the BHO-doped VLS-YBCO from TEM and EDX mapping.
KW - Coated Conductors
KW - High temperature superconductors
KW - VLS growth technique
UR - http://www.scopus.com/inward/record.url?scp=85103901685&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85103901685&partnerID=8YFLogxK
U2 - 10.1109/TASC.2021.3071143
DO - 10.1109/TASC.2021.3071143
M3 - Article
AN - SCOPUS:85103901685
SN - 1051-8223
VL - 31
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 5
M1 - 9397367
ER -