Jang, Ho Won Choi, Kyoung-Jin Folkman, Chad M. Oates, Daniel E. Eom, Chang-Beom 2024-01-20T21:30:50Z 2024-01-20T21:30:50Z 2021-09-01 2009-06 1051-8223 https://pubs.kist.re.kr/handle/201004/132470 We report intermodulation distortion (IMD) in high-quality epitaxial YBa(2)Cu(3)O(7-delta) (YBCO) thick films and multilayers prepared by pulsed-laser deposition ( PLD) using multiple targets. Two sets of films were prepared: single-layer and multilayer YBCO films in which a 20-nm-thick CeO(2) inter layer is inserted between every 100-nm-thick YBCO layer. With increasing YBCO thickness from 200 nm to 1200 nm, single-layer films exhibited improvement of IMD, whereas multilayer films showed degradation of IMD. Similarly, YBCO crystalline quality in single-layer films was improved with increasing the thickness, while that in multi-layers films degraded. These results suggest that there is a strong correlation between crystalline quality and IMD for YBCO films. The comparison of experimental data with the theory of IMD suggests that improving crystalline quality is essential for YBCO films with thickness greater than 1 mu m to achieve an intrinsic non-linear behavior. PLD using multiple targets is a very useful method to grow thick YBCO films with high crystalline quality and low IMD. English IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC TEMPERATURE-DEPENDENCE NONLINEARITY YBCO Intermodulation Distortion in Epitaxial Y-Ba-Cu-O Thick Films and Multilayers Article 10.1109/TASC.2009.2019668 1 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, v.19, no.3, pp.2855 - 2858 IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 19 3 2855 2858 scie scopus 000268282200077 Engineering, Electrical & Electronic Physics, Applied Engineering Physics Article TEMPERATURE-DEPENDENCE NONLINEARITY YBCO Intermodulation distortion nonlinearity pulsed-laser deposition YBa(2)Cu(3)O(7-delta)