TY - JOUR
T1 - Longitudinal Magnetic Field Effects on (Y,Gd)Ba2Cu3O7-δ Coated Conductor with BaHfO3 Nanoparticles Fabricated by UTOC-MOD Method
AU - Okada, Tatsunori
AU - Misaizu, Hidenori
AU - Awaji, Satoshi
AU - Nakaoka, Koichi
AU - MacHi, Takato
AU - Izumi, Teruo
AU - Miura, Masashi
N1 - Funding Information:
Manuscript received October 29, 2018; accepted February 11, 2019. Date of publication February 15, 2019; date of current version March 18, 2019. This work was supported in part by a matching foundation between AIST and Tohoku University, by a research grant from the Japan Power Academy (Specially Promoted Research), and in part by JSPS KAKENHI under Grants 18K13783 and 18H05248. (Corresponding author: Tatsunori Okada.) T. Okada, H. Misaizu, and S. Awaji are with the Institute for Materials Research, Tohoku University, Sendai, Miyagi 980-8577, Japan (e-mail:, tatsu. okada@imr.tohoku.ac.jp; awaji@imr.tohoku.ac.jp).
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - To clarify the effects of longitudinal magnetic field (LMF) on Y0.77Gd0.23Ba2Cu3O7-δ coated conductors fabricated by the trifluoroacetic-acid based metal organic decomposition method with the ultra-thin-once-coating process (UTOC-MOD (Y,Gd)BCO-CCs), and to understand the contributions of BaHfO3 nanoparticles (BHO-NPs) to this, we investigated the critical current density Jc under a wide range of temperature and magnetic field conditions. We found that Jc in the LMF configuration increased compared to those in the in-plane transverse magnetic field configuration under whole conditions in samples both with (w/) and without (w/o) BHO-NPs. Jc enhancement due to the LMF configuration was remarkable in the w/BHO-NPs sample at higher temperatures, indicating that introduction of BHO-NPs to UTOC-MOD (Y,Gd)BCO-CC would be useful for LMF DC cable applications.
AB - To clarify the effects of longitudinal magnetic field (LMF) on Y0.77Gd0.23Ba2Cu3O7-δ coated conductors fabricated by the trifluoroacetic-acid based metal organic decomposition method with the ultra-thin-once-coating process (UTOC-MOD (Y,Gd)BCO-CCs), and to understand the contributions of BaHfO3 nanoparticles (BHO-NPs) to this, we investigated the critical current density Jc under a wide range of temperature and magnetic field conditions. We found that Jc in the LMF configuration increased compared to those in the in-plane transverse magnetic field configuration under whole conditions in samples both with (w/) and without (w/o) BHO-NPs. Jc enhancement due to the LMF configuration was remarkable in the w/BHO-NPs sample at higher temperatures, indicating that introduction of BHO-NPs to UTOC-MOD (Y,Gd)BCO-CC would be useful for LMF DC cable applications.
KW - Critical current density
KW - flux pinning
KW - high-temperature superconductors
KW - superconducting thin films
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U2 - 10.1109/TASC.2019.2899745
DO - 10.1109/TASC.2019.2899745
M3 - Article
AN - SCOPUS:85063595573
VL - 29
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 5
M1 - 8642807
ER -