本文报道了在(001)掺钇氧化锆(YSZ)基片上生长高质量CeO2缓冲层和Tl-2212超导薄膜的制备方法,以及不同厚度的超导薄膜对其特性的影响.XRD和SEM测试表明,在经过合适条件退火的基片和CeO2缓冲层上,所生长的Tl-2212薄膜具有致密的晶体结构、优良的面内和面外取向.最佳样品的临界转变温度(Tc)和临界电流密度为(Jc)可以分别达到107.5 K和 4.24 MA/cm2(77 K,0 T).实验结果表明,采用该工艺所制备的不同厚度Tl-2212超导薄膜的主要指标能满足开发多种超导器件的要求.
参考文献
| [1] | Yan S L;Fang L;Song Q X et al.Formation of Epitaxial Tl2Ba2CaCu2O8 Thin Films at Low Temperature in Pure Argon[J].Applied Physics Letters,1993,63:1845-1847. |
| [2] | Li SL;Chen YF;Xu XP;Wang RL;Tian HY;Lin DH;Zheng DN .Fabrication of double-sided Tl2Ba2CaCu2O8 thin films on 2-in. LaAlO3 substrates by pulsed laser deposition and post-annealing[J].Physica, C. Superconductivity and its applications,2007(2):1369-1370. |
| [3] | 伊长虹,胡芳仁,张庆刚,陈莺飞,徐小平,郑东宁.密封容器中后处理制备Tl2Ba2CaCu2Oy高温超导薄膜及其性能研究[J].物理学报,2004(10):3525-3529. |
| [4] | Yan SL.;Si MS.;Wang J.;Cao HL.;Song QX.;Zhou XD.;Hao JM.;Fang L. .THE STABILITY OF EPITAXIAL TL2BA2CACU2O8 THIN FILMS IN WATER[J].Solid State Communications,1996(8):723-725. |
| [5] | Snigirev O. V.;Chukharkin M. L.;Kalabukhov A. S.;Tarasov M. A.;Deleniv A. A.;Mukhanov O. A.;Winkler D. .Superconducting Quantum Interference Filters as RF Amplifiers[J].IEEE Transactions on Applied Superconductivity: A Publication of the IEEE Superconductivity Committee,2007(2):718-721. |
| [6] | Song, F;Levitchev, MY;Markelov, VA;Kurin, VV;Fang, L;Klushin, AM .Millimeter-wavelength radiation from arrays of discrete high-temperature superconductor Josephson junctions[J].Superconductor Science & Technology,2010(3):034026:1-034026:6. |
| [7] | 谢清连,阎少林,方兰,赵新杰,游石头,张旭,左涛,周铁戈,季鲁,何明,岳宏卫,王争,李加蕾,张玉婷.热处理对MgO基片的表面形貌以及对CeO2和Tl-2212薄膜生长的影响[J].低温与超导,2008(04):1-4,7. |
| [8] | Schneidewind H.;Stelzner T. .Optimization of surface morphology and electrical parameters of Tl-Ba-Ca-Cu-O thin films for high frequency devices[J].IEEE Transactions on Applied Superconductivity: A Publication of the IEEE Superconductivity Committee,2003(2):2762-2765. |
| [9] | Chromik S.;Gazi S.;Strbik V.;Hanic F.;Falcony C.;Vasko M. Benacka S.;Jergel M. .Influence of substrate and precursor film composition on morphology and superconducting transition of T1-2212 thin films characterized by microwaves[J].Physica, C. Superconductivity and its applications,2001(1/4):429-432. |
| [10] | Morales A;Conde-Gallardo A;Jergel M et al.Influence of Thallination Conditions upon Properties of TBCCO Films Deposited by an Aerosol[J].Physica C,1997,282-287:637-638. |
| [11] | 谢清连,阎少林,赵新杰,方兰,季鲁,张玉婷,游石头,李加蕾,张旭,周铁戈,左涛,岳宏卫.高温退火对蓝宝石基片的表面形貌和对CeO缓冲层以及Tl-2212超导薄膜长的影响[J].物理学报,2008(01):519-525. |
| [12] | 谢清连,游峰,黄国华,李建映,左涛,何明,季鲁,张玉婷,赵新杰,方兰,阎少林.CeO_2缓冲层热处理对Tl-2212薄膜超导特性的影响[J].人工晶体学报,2009(05):1146-1153. |
| [13] | N. Savvides;A. Thorley;S. Gnanarajan;A. Katsaros .Epitaxial growth of cerium oxide thin film buffer layers deposited by d.c. magnetron sputtering[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2001(1/2):177-182. |
| [14] | Schneidewind H;Manzel M;Bruchlos G et al.TlBaCuO-(2212) Thin Films on Lanthanum Aluminate and Sapphire Substrates for Microwave Filters[J].Superconductor Science and Technology,2001,14:200-212. |
| [15] | Kawagishi K.;Komori K. .Preparation of in-plane textured large-area YBCO films on (100) MgO with CeO_2/YSZ buffer layers[J].Superconductor Science & Technology,2000(11):1553-1558. |
| [16] | Lu RT.;Yan SL.;Fang L.;He M.;Zhao XJ.;Ma YC.;Li W. .Fabrication and superconductivity of very thin Tl2Ba2CaCu2Ox films[J].Physica, C. Superconductivity and its applications,2003(1/2):43-47. |
| [17] | 吴自勤;王兵.薄膜生长[M].北京:科学出版社,2001:119-122. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%