Abstract
The superconducting properties of cation off-stoichiometric GdB 2Cu3O7-δ (Gd123) thin film grown by pulsed laser deposition method show a strong dependence on target compositions and particularly get worse in case of a ratio Ba/Gd>2. We investigated the effect of cation off-stoichiometric target sample on lattice properties of Gd123 thin films using Raman spectroscopy. In addition to five Ag modes related to ortho-I phase, some additional peaks are seen in the films of Ba/Gd>2. The result implies that the superconducting properties of the films are strongly influenced by the cation off-stoichiometric effect and in connection with the existence of additional peaks.
| Original language | English |
|---|---|
| Article number | 113911 |
| Journal | Journal of Applied Physics |
| Volume | 115 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2014 Mar 21 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Kakeshita, T., Hirose, K., Yokoyama, T., & Lee, S. (2014). Cation off-stoichiometric effect on superconducting GdBa2Cu 3O7-δ thin films investigated by Raman spectroscopy. Journal of Applied Physics, 115(11), [113911]. https://doi.org/10.1063/1.4869133