@article{e5b200ca2a3d4205b8ffc3a0811ca07b,
title = "Correlation between surface resistance of Yba2Cu3O7-δ thin films and oxygen pressure during deposition process",
abstract = "In this paper, we study the correlation between the depositing oxygen pressure and surface resistance R8 of YBa2Cu3O7-δ (YBCO) films fabricated by pulsed-laser deposition method. It reveals that oxygen pressure has great influence on Rs. In terms of minimum Rs, there exists optimum value of oxygen pressure which is different from the optimum oxygen pressure for maximum Tc. The crystalline orientation and surface morphologies of the films are helpful in understanding the variations of Rs with the oxygen pressure.",
author = "Wu, {R. X.} and Yang, {S. Z.} and Zhou, {Y. L.} and Jin, {B. B.} and M. Qian and Wu, {P. H.} and Gu, {J. H.} and Ding, {D. S.}",
note = "Funding Information: To study the effects of oxygen pressure on the YBCO films during the deposition, it is important to select a suitable deposition method. Pulsed-laser deposition (PLD) method has a major benefit that the thin film deposited has the same composition as that of the target except oxygen [3], making itself a good candidate for the experiments. We have made two sets of YBCO thin films with dimension of 10mm x 15mm. The substrates are Ystabilized Zironia (YSZ) for one set and LaAI03 (LAO) for another. For each set of the films, all fabrication conditions are the same except the oxygen pressure during the deposition. Each of the films ablated by PLD [4] is incorporated in turn into a TEo]o sapphire resonator as one of the end plate and HP8510 network analyzer is used to measure the unloaded quality factor of the resonator at 77K and 17.7 GHz so that the film's Rs can be found [7]. Then the critical temperature T e is measured by ac susceptibility at frequency I kHz. The results are summarized in Table I. From the Table, we can see that Rs values change with P(02) appreciably no mater what substrates the films are on. With the increase ofp(02) the Rs values • This work is supported by the State Key Laboratory of Millimeter Waves, Southeast University, partly by the National Center for Research and Development on Superconductivity of China, and partly by the international collaborative research project of Telecommunications Advancement Organization (TAO) of Japan. Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",
year = "1997",
month = aug,
doi = "10.1016/S0921-4534(97)00399-7",
language = "English (US)",
volume = "282-287",
pages = "591--592",
journal = "Physica C: Superconductivity and its Applications",
issn = "0921-4534",
publisher = "Elsevier",
number = "PART 2",
}