The flux pinning properties of BaSnO3-added GdBa2Cu3O7-δ films with varying growth conditions
- 1. Dept. of Physics, Chungbuk National University, Cheongju (Korea, Republic of)
- 2. Dept. of Physics, Sungkyunkwan University, Suwon (Korea, Republic of)
Description
Addition of BaSnO3 (BSO) to GdBa2Cu3O7-δ (GdBCO) is reported to enhance the flux pinning property of GdBCO thick films. To investigate the effect of growth condition on the pinning properties, 700 nm-thick BSO-added GdBCO films deposited with varying temperatures and growth rates were prepared by using a pulsed laser deposition method. As the deposition temperature increases, the critical current density and the pinning force density show an improved field dependence up to 750 ℃ due to the increase in the formation of the a-axis growth and the BSO nanostructures. The films deposited at higher temperatures show degraded surfaces and as a result, degraded pinning behaviors. For the change in growth rate, the critical current density and the pinning force increase as the repetition rate increase at low magnetic fields, but this behavior is reversed in high magnetic fields. These results indicate that the film growth conditions significantly affect the formation of BSO nanostructures and the pinning properties of BSO-added GdBCO films
Additional details
Publishing Information
- Journal Title
- Progress in Superconductivity and Cryogenics
- Journal Volume
- 19
- Journal Issue
- 3
- Series
- 23 refs, 5 figs, 1 tab
- Journal Page Range
- p. 18-22
- ISSN
- 1229-3008
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 48087222
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM OXIDES; CURRENT DENSITY; DEPOSITION; MAGNETIC FIELDS; MAGNETIC FLUX; NANOSTRUCTURES; SURFACES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; OXIDES; OXYGEN COMPOUNDS