Abstract
We report effects of growth temperature on superconducting properties and microstructure of ErBa2Cu3O7-δ (ErBCO) films with BaNb2O6 (BNO)-doping grown by pulse laser deposition (PLD) on SrTiO3 (STO) substrates. The BNO was introduced into the ErBCO films as artificial pinning centers. X-ray diffraction analysis indicated the high orientation of both c-axis and in-plane for the obtained BNO-doped ErBCO (BNO + ErBCO) films. Ba(Er0.5Nb0.5)O3 (BENO) nanorods were observed clearly in transmission electron microscopy (TEM) images of the BNO + ErBCO films. The BENO nanorod was thinner with decreasing the growth temperature. The BNO + ErBCO films showed higher critical current density (JC) than that of a pure ErBCO film in a magnetic field (H) in H∥c-axis, indicating that BENO nanorods played as c-axis correlated pinning centers. Furthermore, we found a tendency that JC of the BNO + ErBCO films were enhanced with decreasing the growth temperature. Consequently, the pinning effect of the introduced BENO was controlled by the optimization of growth condition such as growth temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 1854-1857 |
| Number of pages | 4 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 468 |
| Issue number | 15-20 |
| DOIs | |
| Publication status | Published - Sep 15 2008 |
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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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Effects of growth temperature for superconducting properties and microstructures of PLD-ErBa2Cu3O7-δ film with BaNb2O6. / Kai, H.; Mukaida, Masashi; Teranishi, Ryo; Mori, N.; Yamada, K.; Horii, S.; Ichinose, A.; Kita, R.; Matsumoto, K.; Yoshida, Y.; Awaji, S.; Watanabe, K.; Namba, M.; Fujiyoshi, T.
In: Physica C: Superconductivity and its Applications, Vol. 468, No. 15-20, 15.09.2008, p. 1854-1857.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Effects of growth temperature for superconducting properties and microstructures of PLD-ErBa2Cu3O7-δ film with BaNb2O6
AU - Kai, H.
AU - Mukaida, Masashi
AU - Teranishi, Ryo
AU - Mori, N.
AU - Yamada, K.
AU - Horii, S.
AU - Ichinose, A.
AU - Kita, R.
AU - Matsumoto, K.
AU - Yoshida, Y.
AU - Awaji, S.
AU - Watanabe, K.
AU - Namba, M.
AU - Fujiyoshi, T.
PY - 2008/9/15
Y1 - 2008/9/15
N2 - We report effects of growth temperature on superconducting properties and microstructure of ErBa2Cu3O7-δ (ErBCO) films with BaNb2O6 (BNO)-doping grown by pulse laser deposition (PLD) on SrTiO3 (STO) substrates. The BNO was introduced into the ErBCO films as artificial pinning centers. X-ray diffraction analysis indicated the high orientation of both c-axis and in-plane for the obtained BNO-doped ErBCO (BNO + ErBCO) films. Ba(Er0.5Nb0.5)O3 (BENO) nanorods were observed clearly in transmission electron microscopy (TEM) images of the BNO + ErBCO films. The BENO nanorod was thinner with decreasing the growth temperature. The BNO + ErBCO films showed higher critical current density (JC) than that of a pure ErBCO film in a magnetic field (H) in H∥c-axis, indicating that BENO nanorods played as c-axis correlated pinning centers. Furthermore, we found a tendency that JC of the BNO + ErBCO films were enhanced with decreasing the growth temperature. Consequently, the pinning effect of the introduced BENO was controlled by the optimization of growth condition such as growth temperature.
AB - We report effects of growth temperature on superconducting properties and microstructure of ErBa2Cu3O7-δ (ErBCO) films with BaNb2O6 (BNO)-doping grown by pulse laser deposition (PLD) on SrTiO3 (STO) substrates. The BNO was introduced into the ErBCO films as artificial pinning centers. X-ray diffraction analysis indicated the high orientation of both c-axis and in-plane for the obtained BNO-doped ErBCO (BNO + ErBCO) films. Ba(Er0.5Nb0.5)O3 (BENO) nanorods were observed clearly in transmission electron microscopy (TEM) images of the BNO + ErBCO films. The BENO nanorod was thinner with decreasing the growth temperature. The BNO + ErBCO films showed higher critical current density (JC) than that of a pure ErBCO film in a magnetic field (H) in H∥c-axis, indicating that BENO nanorods played as c-axis correlated pinning centers. Furthermore, we found a tendency that JC of the BNO + ErBCO films were enhanced with decreasing the growth temperature. Consequently, the pinning effect of the introduced BENO was controlled by the optimization of growth condition such as growth temperature.
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U2 - 10.1016/j.physc.2008.05.100
DO - 10.1016/j.physc.2008.05.100
M3 - Article
AN - SCOPUS:50449110140
VL - 468
SP - 1854
EP - 1857
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 15-20
ER -