Abstract
We propose a microscopic approach to derive angular dependent critical current density Jc(θ) of YBCO films with c-axis correlated nanorods, based on the energy gain by pinning. Results are in good agreement with experimental ones. Irreversibility fields and Jc in YBa2Cu3O7-x thin films containing segmented BaSnO3 nanorods are systematically changed by selection of nanorod length and its spacing, and the variations are explained by the 'harmonic oscillator' approach based on the Bose glass state. Analysis of pinning energies and Jc indicates that stacked BSO nanorod segments in line behave as single columnar with a smaller diameter pin for Bc, in contrast, as nanoparticle pins for Bab.
| Original language | English |
|---|---|
| Article number | 7024153 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 25 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2015 Jun 1 |
| Externally published | Yes |
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Keywords
- artificial pinning centers
- critical current density
- flux pinning
- irreversibility field
- YBCO
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Irreversibility fields and critical current densities in strongly pinned YBa2Cu3O7-x films with artificial pinning centers. / Matsumoto, Kaname; Horide, Tomoya; Jha, Alok K.; Mele, Paolo; Yoshida, Yutaka; Awaji, Satoshi.
In: IEEE Transactions on Applied Superconductivity, Vol. 25, No. 3, 7024153, 01.06.2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Irreversibility fields and critical current densities in strongly pinned YBa2Cu3O7-x films with artificial pinning centers
AU - Matsumoto, Kaname
AU - Horide, Tomoya
AU - Jha, Alok K.
AU - Mele, Paolo
AU - Yoshida, Yutaka
AU - Awaji, Satoshi
PY - 2015/6/1
Y1 - 2015/6/1
N2 - We propose a microscopic approach to derive angular dependent critical current density Jc(θ) of YBCO films with c-axis correlated nanorods, based on the energy gain by pinning. Results are in good agreement with experimental ones. Irreversibility fields and Jc in YBa2Cu3O7-x thin films containing segmented BaSnO3 nanorods are systematically changed by selection of nanorod length and its spacing, and the variations are explained by the 'harmonic oscillator' approach based on the Bose glass state. Analysis of pinning energies and Jc indicates that stacked BSO nanorod segments in line behave as single columnar with a smaller diameter pin for Bc, in contrast, as nanoparticle pins for Bab.
AB - We propose a microscopic approach to derive angular dependent critical current density Jc(θ) of YBCO films with c-axis correlated nanorods, based on the energy gain by pinning. Results are in good agreement with experimental ones. Irreversibility fields and Jc in YBa2Cu3O7-x thin films containing segmented BaSnO3 nanorods are systematically changed by selection of nanorod length and its spacing, and the variations are explained by the 'harmonic oscillator' approach based on the Bose glass state. Analysis of pinning energies and Jc indicates that stacked BSO nanorod segments in line behave as single columnar with a smaller diameter pin for Bc, in contrast, as nanoparticle pins for Bab.
KW - artificial pinning centers
KW - critical current density
KW - flux pinning
KW - irreversibility field
KW - YBCO
UR - http://www.scopus.com/inward/record.url?scp=84927165564&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84927165564&partnerID=8YFLogxK
U2 - 10.1109/TASC.2015.2396358
DO - 10.1109/TASC.2015.2396358
M3 - Article
VL - 25
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3
M1 - 7024153
ER -