View : 46 Download: 0
Characterization of co-evaporated SmBa2Cu3O 7 coated conductors by polarized-raman scattering spectroscopy
- Characterization of co-evaporated SmBa2Cu3O 7 coated conductors by polarized-raman scattering spectroscopy
- Kim G.; Jo W.; Ha H.-S.; Oh S.S.; Park D.Y.; Cheong H.
- Ewha Authors
- SCOPUS Author ID
- Issue Date
- Journal Title
- IEEE Transactions on Applied Superconductivity
- vol. 21, no. 3 PART 3, pp. 3352 - 3355
- SCI; SCIE; SCOPUS
- SmBa2Cu3O7(SmBCO)-coated conductors were grown on IBAD-MgO templates by in-situ co-evaporation using a drum-in-dual-chambers system. The conductors, which had a coating thickness of up to 3 μ, showed a critical temperature of 92 ̃ 94 K and a critical current of 150 ̃ 625 A/cm-w at 77 K in a self-field. The phonon modes and cation disorder of the SmBCO-coated conductors were examined by polarized Raman scattering spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy. XRD showed (00l) peaks for the SmBCO phase. The Raman spectra revealed common vibration modes, including Ba-Ba stretching, Cu2-Cu2 stretching, O(2)+/O(3)-, and apical O(4) modes. In addition, polarized-Raman spectra were obtained to examine the crystal orientation and grain growth behavior. Structural information from the Raman spectra turned out to be useful to determine the optimal thickness of SmBCO-coated conductors with high critical currents. © 2010 IEEE.
- Appears in Collections:
- 자연과학대학 > 물리학전공 > Journal papers
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.