Abstract
We have investigated the in-field critical current properties in BaZrO 3 -added (Y, Gd) Ba 2 Cu 3 O 7-δ (YGdBCO)-coated conductor fabricated by using a multi-coating trifluoroacetates metal-organic deposition (MOD) method. We compared these properties with EuBCO-coated conductor fabricated by the pulsed laser deposition (PLD) method. The sample using the 30-nm once-coat-layer-thickness d once shows superior in-field J c down to 4.2 K than that of the previous standard coating using 170-nm-thick layer for each coating. From the analysis of E-J characteristics, an analytical expression for J c as a function T and B has been derived. It was confirmed that the high J c region in sample with d once = 30 nm is widely spread in high-temperature and high-magnetic-field region. By comparison with the J c properties of the BaHfO 3 -added PLD CCs, the minimum J c , which is estimated from magnetic field angle dependence, shows even higher value up to 5 T of magnetic field at 65 K and up to 3 T at 77 K. From these results, the new MOD-YGdBCO process using the thin once-coat-layer-thickness is very promising for the practically important mid field region such as 3 to 5 T.
| Original language | English |
|---|---|
| Article number | 8197366 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 28 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Apr 1 2018 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Enhancement of In-Field Critical Current Density of BaZrO3-Added (Y, Gd) BCO-Coated Conductors by Using a Multi-Coating TFA-MOD Method. / Suzuki, Takumi; Oomura, Syunsuke; Imamura, Kazutaka; Inoue, Masayoshi; Higashikawa, Kohei; Awaji, Satoshi; Nakaoka, Koichi; Izumi, Teruo; Kiss, Takanobu.
In: IEEE Transactions on Applied Superconductivity, Vol. 28, No. 3, 8197366, 01.04.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhancement of In-Field Critical Current Density of BaZrO3-Added (Y, Gd) BCO-Coated Conductors by Using a Multi-Coating TFA-MOD Method
AU - Suzuki, Takumi
AU - Oomura, Syunsuke
AU - Imamura, Kazutaka
AU - Inoue, Masayoshi
AU - Higashikawa, Kohei
AU - Awaji, Satoshi
AU - Nakaoka, Koichi
AU - Izumi, Teruo
AU - Kiss, Takanobu
PY - 2018/4/1
Y1 - 2018/4/1
N2 - We have investigated the in-field critical current properties in BaZrO 3 -added (Y, Gd) Ba 2 Cu 3 O 7-δ (YGdBCO)-coated conductor fabricated by using a multi-coating trifluoroacetates metal-organic deposition (MOD) method. We compared these properties with EuBCO-coated conductor fabricated by the pulsed laser deposition (PLD) method. The sample using the 30-nm once-coat-layer-thickness d once shows superior in-field J c down to 4.2 K than that of the previous standard coating using 170-nm-thick layer for each coating. From the analysis of E-J characteristics, an analytical expression for J c as a function T and B has been derived. It was confirmed that the high J c region in sample with d once = 30 nm is widely spread in high-temperature and high-magnetic-field region. By comparison with the J c properties of the BaHfO 3 -added PLD CCs, the minimum J c , which is estimated from magnetic field angle dependence, shows even higher value up to 5 T of magnetic field at 65 K and up to 3 T at 77 K. From these results, the new MOD-YGdBCO process using the thin once-coat-layer-thickness is very promising for the practically important mid field region such as 3 to 5 T.
AB - We have investigated the in-field critical current properties in BaZrO 3 -added (Y, Gd) Ba 2 Cu 3 O 7-δ (YGdBCO)-coated conductor fabricated by using a multi-coating trifluoroacetates metal-organic deposition (MOD) method. We compared these properties with EuBCO-coated conductor fabricated by the pulsed laser deposition (PLD) method. The sample using the 30-nm once-coat-layer-thickness d once shows superior in-field J c down to 4.2 K than that of the previous standard coating using 170-nm-thick layer for each coating. From the analysis of E-J characteristics, an analytical expression for J c as a function T and B has been derived. It was confirmed that the high J c region in sample with d once = 30 nm is widely spread in high-temperature and high-magnetic-field region. By comparison with the J c properties of the BaHfO 3 -added PLD CCs, the minimum J c , which is estimated from magnetic field angle dependence, shows even higher value up to 5 T of magnetic field at 65 K and up to 3 T at 77 K. From these results, the new MOD-YGdBCO process using the thin once-coat-layer-thickness is very promising for the practically important mid field region such as 3 to 5 T.
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U2 - 10.1109/TASC.2017.2782695
DO - 10.1109/TASC.2017.2782695
M3 - Article
VL - 28
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3
M1 - 8197366
ER -