Nb掺杂YBCO薄膜钉扎机理的研究

doi:10.15541/jim20190001

无机材料学报 ›› 2019, Vol. 34 ›› Issue (10): 1055-1059.DOI: 10.15541/jim20190001 CSTR: 32189.14.10.15541/jim20190001

Nb掺杂YBCO薄膜钉扎机理的研究

王雅,索红莉(),毛磊,刘敏,马麟,王毅,KAUSARShaheen,周宇琦

北京工业大学材料科学与工程学院, 国家教育部功能材料重点实验室, 北京100124

收稿日期:2019-01-02 修回日期:2019-03-07 出版日期:2019-09-23 网络出版日期:2019-05-29
作者简介:王雅(1993-), 女, 硕士研究生. E-mail: pugongying@emails.bjut.edu.cn
基金资助:
北京市自然科学基金(2171008);国家自然科学基金(51571002);基带性能评估研究(GH-201809CG005);北京市教育委员会科技发展总项目(KM201810005010);科技创新服务能力建设-高精尖学科建设(市级)-材料科学与工程学科(PXM2019- 014204-500031);北京市和北京工业大学211计划

Flux Pinning Mechanism of Nb-doped YBCO Film

WANG Ya,SUO Hong-Li(),MAO Lei,LIU Min,MA Lin,WANG Yi,KAUSAR Shaheen,ZHOU Yu-Qi

The Key Laboratory of Advanced Functional Materials, Ministry of Education, Beijing University of Technology, Beijing 100124, China

Received:2019-01-02 Revised:2019-03-07 Published:2019-09-23 Online:2019-05-29
Supported by:
Beijing Natural Science Foundation(2171008);National Natural Science Foundation of China(51571002);Baseband Performance Evaluation Study(GH-201809CG005);Beijing Municipal Education Commission Science and Technology Development Project(KM201810005010);Program of Top Disciplines Construction in Beijing(PXM2019- 014204-500031);211 Program of Beijing

摘要/Abstract

摘要：

通过低氟MOD法制备了Nb掺杂的YBa₂Cu₃O_7-_x(YBCO)薄膜, 掺入的Nb以Ba₂YNbO₆(BYNO)相存在, 其尺寸大小在20~30 nm之间, 薄膜中BYNO纳米颗粒以外延和随机两种取向共存, 且以随机取向为主。BYNO纳米颗粒的周围出现堆垛层错, 并且BYNO周围的YBCO出现严重的晶格畸变, 这增加了YBCO薄膜内部的微观应变, 且随机BYNO颗粒含量越高, YBCO薄膜内部的微观应变就越大。微观应变增加了薄膜的磁通钉扎能力, 进而提高了薄膜在高磁场下的超导性能。

关键词: YBCO薄膜, BYNO掺杂颗粒, 随机取向, 微观应变, 钉扎能力

Abstract:

Nb doped YBa₂Cu₃O_7-_x(YBCO) film was fabricated by metal organic deposition (MOD) method. BYNO thin film composed of Nb element was obtained with the size ranged from 20-30 nm. It is indicated that the epitaxial and random oriented BYNO nanoparticles were coexisted in YBCO film and mainly shows random orientation. Strengthening of nanostrains can be attributed towards the stacking fault parallel to the film and the lattice distortion around the BYNO nanoparticles inside the thin film. As the random fraction of BYNO increasing, the nanostrain within nanocomposites was strengthened. The nanostrain increases the magnetic flux pinning ability of the film, thereby improving the superconducting properties of the film under high magnetic field.

Key words: YBCO film, BYNO nanoparticles, random oriented, nanostrain, pinning property

中图分类号:

TQ174

王雅, 索红莉, 毛磊, 刘敏, 马麟, 王毅, KAUSARShaheen, 周宇琦. Nb掺杂YBCO薄膜钉扎机理的研究[J]. 无机材料学报, 2019, 34(10): 1055-1059.

WANG Ya, SUO Hong-Li, MAO Lei, LIU Min, MA Lin, WANG Yi, KAUSAR Shaheen, ZHOU Yu-Qi. Flux Pinning Mechanism of Nb-doped YBCO Film[J]. Journal of Inorganic Materials, 2019, 34(10): 1055-1059.

图/表 8

图1 Nb掺杂量为13mol%的YBCO/BYNO的2D-XRD图谱

Fig. 1 2D-XRD frames of YBCO/BYNO film with 13mol% dopant (a)2θ scan of 25°-45°; (b) 2θ scan of 45°-75°

图2 复合薄膜在χ=45°时的2D-XRD衍射图谱

Fig. 2 2D-XRD diffraction patterns of nanocomposite film at χ=45° (a) Diffract region of random nanoparticles; (b) Diffract region of random and epitaxial nanoparticles

表1 不同Nb掺杂量制备的YBCO/BYNO复合薄膜中随机BYNO纳米颗粒的含量

Table 1 Fraction of random oriented BYNO nanoparticles of YBCO/BYNO nanocomposites with different content of Nb dopant

Doping amount of Nb/mol%	Content of random BYNO nanoparticles/%
5	86.25
8	88.90
10	93.30

图3 YBCO/BYNO复合薄膜截面的TEM照片

Fig. 3 Cross-section TEM images of YBCO/BYNO nanocomposite film (a) BYNO nanoparticle within YBCO matrix; (b) BYNO nanoparticle at the interface of substrate; (c) Bent YBCO around BYNO nanoparticle

图4 Nb掺杂量为10mol%的YBCO/BYNO复合薄膜内部的微观应变

Fig. 4 Nanostrain in the YBCO/BYNO nanocomposite film with 10mol% dopant

图5 不同Nb掺杂量的复合薄膜的微观应变

Fig. 5 Nanostrain of nanocomposite with different content of Nb dopant

图6 不同Nb掺杂含量YBCO/BYNO复合薄膜的Jc(a)和Fp(b)随外加磁场的变化关系

Fig. 6 Field dependence of Jc (a) and Fp (b) values for YBCO/BYNO film with different doping contents

图7 微观应变与钉扎力之间的关系

Fig. 7 Relationship between nanostrain and pinning force

参考文献 15

[1]	PALAU A, VALLES F, ROUCO V , et al. Disentangling vortex pinning landscape in chemical solution deposited superconducting YBa2Cu3O7-x films and nanocomposites. Superconductor Science and Technology, 2018,31(3):034004.
[2]	CAMPBELL T A, HAUGAN T J, MAARTENSE I , et al. Flux pinning effects of Y2O3 nanoparticulate dispersions in multilayered YBCO thin films. Physica C: Superconductivity, 2005,423:1-8.
[3]	ALMESSIERE M A , AL-OTAIBI A L, AZZOUZ F B. Superconducting properties of nano-sized SiO2 added YBCO thick film on Ag substrate. Indian Journal of Physics, 2017,91(10):1149-1158.
[4]	MASUDA Y, TERANISHI R, MATSUYAMA M , et al. Flux pinning properties of YBCO films with nano-particles by TFA-MOD method. Physics Procedia, 2012,27(2012):240-243.
[5]	KOBAYASHI H, ISHIDA S, TAKAHASHI K , et al.Investigation of magnetic properties of YBCO film with artificial pinning centers on PLD/IBAD metal substrate. Physica C, 2006, 445- 448:625-627.
[6]	YE SHUI, SUO HONG-LI, LIU MIN , et al. Zr-doped YBCO film prepared by fluorine-reduced MOD method. Journal of Inorganic Material, 2009,24(6):1205-1208.
[7]	CHEN S, SEBASTIAN M A, GAUTAM B , et al. Enhancement of isotropic pinning force in YBCO films with BaZrO3 nanorods and Y2O3 nanoparticles. IEEE Transactions on Applied Superconductivity, 2017,27(4):1-5.
[8]	YE SHUI, SUO HONG-LI, WU ZI-PING , et al. Preparation of solution- based YBCO films with BaSnO3 particles. Physica C, 2011,471:265-269.
[9]	ZHANG HUI-LIANG, DING FA-ZHU, GU HONG-WEI , et al. Fabrication of high-JC BaTiO3-doped YBa2Cu3O7-δ thin films by the low-fluorine TFA-MOD approach. Journal of Alloys and Compounds, 2016,664:5-10.
[10]	FELDMANN D M, HOLESINGER T G, MAIOROV B , et al. Improved flux pinning in YBa2Cu3O7 with nanorods of the double perovskite Ba2YNbO6. Supercond. Sci. Technol., 2010,23:095004.
[11]	LIORDÉS A, PALAU A, GÁZQUEZ J , et al. Nanoscale strain- induced pair suppression as a vortex-pinning mechanism in hightemperature superconductors. Nature Material, 2012,12:1-8.
[12]	LIN MIN, SUO HONG-LI, YE SHUI , et al. Preparation and properties of YSZ doped YBCO films by TFA-MOD method. Supercond. Sci. Techol., 2008,21:115012.
[13]	ZHAO YUE, TORRES P, TANG XIAO , et al. Growth of highly epitaxial YBa2Cu3O7-δ films from a simple propionate-based solution. ChemInform, 2016, 47(2):10232-1-8.
[14]	COLL M, YE SHUI, ROUCO V , et al. Solution-derived YBa2Cu3O7 nanocomposite films with a Ba2YTaO6 secondary phase for improved superconducting properties. Superconductor Science and Technology, 2013,26(1):015001.
[15]	COLL M, GUZMAN R P GARCÉS, et al. Size-controlled spontaneously segregated Ba2YTaO6 nanoparticles in YBa2Cu3O7 nanocomposites obtained by chemical solution deposition. Superconductor Science and Technology, 2014,27(4):044008.

Nb掺杂YBCO薄膜钉扎机理的研究

Flux Pinning Mechanism of Nb-doped YBCO Film

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

图/表 8

参考文献 15

相关文章 7

编辑推荐

Metrics

本文评价

[1]	陈明月, 颜志超, 陈静, 李敏娟, 刘志勇, 蔡传兵. YBa₂Cu₃O_7-_δ薄膜的BaCl₂/BaF₂-MOD法制备及超导特性研究[J]. 无机材料学报, 2023, 38(2): 199-204.
[2]	罗志永, 廖楚剑, 蔡传兵, 刘志勇, 李敏娟, 鲁玉明. 氩离子刻蚀对TFA-MOD法YBa₂Cu₃O_7-_x薄膜性能的影响研究[J]. 无机材料学报, 2019, 34(12): 1279-1284.
[3]	毛磊, 索红莉, 刘敏, 张子立, 叶帅, 马麟. Nb⁵⁺掺杂对低氟MOD法制备的YBCO薄膜性能的影响[J]. 无机材料学报, 2013, 28(9): 956-960.
[4]	叶帅, 索红莉, 吴紫平, 刘敏, 徐燕, 马麟. 提高YBCO薄膜高场性能的研究[J]. 无机材料学报, 2011, 26(7): 765-768.
[5]	吴紫平, 索红莉, 刘敏, 叶帅, 汤潇. 高性能Y_0.5Gd_0.5BCO薄膜的研究[J]. 无机材料学报, 2010, 25(12): 1273-1276.
[6]	叶帅,索红莉,刘敏,汤潇,吴紫平,周美玲. 低氟MOD法制备Zr掺杂YBCO薄膜的研究[J]. 无机材料学报, 2009, 24(6): 1205-1208.
[7]	刘敏,索红莉,赵跃,张迎肖,刘丹敏,周美玲. 超声雾化方法中两步沉积对YBCO薄膜性能的影响[J]. 无机材料学报, 2007, 22(2): 377-380.