Skip to main content Accessibility help

Interfacial defects distribution and strain coupling in the vertically aligned nanocomposite YBa2Cu3O7-X/ BaSnO3 thin films

  • Yuanyuan Zhu (a1), Chen-Fong Tsai (a1), Jie Wang (a1), Ji Heon Kwon (a1), Haiyan Wang (a1), Chakrapani V. Varanasi (a2), Jack Burke (a2), Lyle Brunke (a2) and Paul N. Barnes (a3)...


In this article, we report the unique microstructural characteristics of YBa2Cu3O7-x (YBCO)/BaSnO3 (BSO) nanocomposite thin films on LaAlO3 (LAO) substrates. The BSO secondary phase grows as self-assembled vertically aligned nanopillars uniformly distributed in the superconducting YBCO matrix. Detailed microstructure and strain studies including x-ray diffraction, cross-section and plan-view transmission electron microscopy, and geometric phase analysis reveal that, as the BSO doping concentration varied from 2 mol% to 20 mol%, the nanopillar density increased from 0.26 × 1011/cm2 to 1.44 × 1011/cm2 while the diameter of the nanopillars remains relatively constant (7–8 nm in diameter). The strain state of the YBCO matrix is affected by both lateral and vertical lattice strains; while, the BSO lattice is strongly tuned by YBCO rather than the substrate. A high-density array of dislocations in the order of 1013/cm2 was observed along the vertical heterogeneous interfaces throughout the YBCO film thickness for all doping concentrations.


Corresponding author

a)Address all correspondence to this author. e-mail:


Hide All
1.Lebedev, O.I., Verbeeck, J., Van Tendeloo, G., Shapoval, O., Belenchuk, A., Moshnyaga, V., Damashcke, B., and Samwer, K.: Structural phase transitions and stress accommodation in (La0.67Ca0.33MnO3)1-x:(MgO)x composite films. Phys. Rev. B 66, 104421 (2002).
2.Ma, J., Hu, J.M., Li, Z., and Nan, C.W.: Recent progress in multiferroic magnetoelectric composites: From bulk to thin films. Adv. Mater. 23, 1062 (2011).
3.Nan, C.W., Bichurin, M.I., Dong, S.X., Viehland, D., and Srinivasan, G.: Multiferroic magnetoelectric composites: Historical perspective, status, and future directions. J. Appl. Phys. 103, 31101 (2008).
4.Harrington, S.A., Durrell, J.H., Wang, H., Wimbush, S.C., Tsai, C.F., and MacManus-Driscoll, J.L.: Understanding nanoparticle self-assembly for a strong improvement in functionality in thin film nanocomposites. Nanotechnology 21, 235702 (2010).
5.Zheng, H., Wang, J., Lofland, S.E., Ma, Z., Mohaddes-Ardabili, L., Zhao, T., Salamanca-Riba, L., Shinde, S.R., Ogale, S.B., Bai, F., Viehland, D., Jia, Y., Schlom, D.G., Wuttig, M., Roytburd, A., and Ramesh, R.: Multiferroic BaTiO3-CoFe2O4 nanostructures. Science 303, 661 (2004).
6.MacManus-Driscoll, J.L., Zerrer, P., Wang, H.Y., Yang, H., Yoon, J., Fouchet, A., Yu, R., Blamire, M.G., and Jia, Q.X.: Strain control and spontaneous phase ordering in vertical nanocomposite heteroepitaxial thin films. Nat. Mater. 7, 314 (2008).
7.Yang, H., Wang, H.Y., Yoon, J., Wang, Y.Q., Jain, M., Feldmann, D.M., Dowden, P.C., MacManus-Driscoll, J.L., and Jia, Q.X.: Vertical interface effect on the physical properties of self-assembled nanocomposite epitaxial films. Adv. Mater. 21, 3794 (2009).
8.Yoon, J., Cho, S., Kim, J.H., Lee, J., Bi, Z.X., Serquis, A., Zhang, X.H., Manthiram, A., and Wang, H.Y.: Vertically aligned nanocomposite thin films as a cathode/electrolyte interface layer for thin-film solid-oxide fuel cells. Adv. Funct. Mater. 19, 3868 (2009).
9.Bi, Z.X., Lee, J.H., Yang, H., Jia, Q.X., MacManus-Driscoll, J.L., and Wang, H.Y.: Tunable lattice strain in vertically aligned nanocomposite (BiFeO3)x:(Sm2O3)1-x thin films. J. Appl. Phys. 106, 94309 (2009).
10.Chen, A.P., Bi, Z.X., Tsai, C.F., Lee, J., Su, Q., Zhang, X.H., Jia, Q.X., MacManus-Driscoll, J.L., and Wang, H.Y.: Tunable low-field magnetoresistance in (La0.7Sr0.3MnO3)0.5:(ZnO)0.5 self-assembled vertically aligned nanocomposite thin films. Adv. Funct. Mater. 21, 2423 (2011).
11.Wu, M.K., Ashburn, J.R., Torng, C.J., Hor, P.H., Meng, R.L., Gao, L., Huang, Z.J., Wang, Y.Q., Chu, C.W.: Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure. Phys. Rev. Lett. 58, 908 (1987).
12.Foltyn, S.R., Civale, L., MacManus-Driscoll, J.L., Jia, Q.X., Maiorov, B., Wang, H., and Maley, M.: Materials science challenges for high-temperature superconducting wire. Nat. Mater. 6, 631 (2007).
13.Wimbush, S.C., Durrell, J.H., Tsai, C.F., Wang, H., Jia, Q.X., Blamire, M.G., and MacManus-Driscoll, J.L.: Enhanced critical current in YBa2Cu3O7-δ thin films through pinning by ferromagnetic YFeO3 nanoparticles. Supercond. Sci. Technol. 23, 45019 (2010).
14.Haugan, T., Barnes, P.N., Wheeler, R., Meisenkothen, F., and Sumption, M.: Addition of nanoparticle dispersions to enhance flux pinning of the YBa2Cu3O7-x superconductor. Nature 430, 867 (2004).
15.Dam, B., Huijbregtse, J.M., and Rector, J.H.: Strong pinning linear defects formed at the coherent growth transition of pulsed-laser-deposited YBa2Cu3O7-δ films. Phys. Rev. B 65, 64528 (2002).
16.MacManus-Driscoll, J.L., Foltyn, S.R., Jia, Q.X., Wang, H., Serquis, A., Civale, L., Maiorov, B., Hawley, M.E., Maley, M.P., and Peterson, D.E.: Strongly enhanced current densities in superconducting coated conductors of YBa2Cu3O7-x+BaZrO3. Nat. Mater. 3, 439 (2004).
17.Foltyn, S.R., Wang, H., Civale, L., Jia, Q.X., Arendt, P.N., Maiorov, B., Li, Y., Maley, M.P., and MacManus-Driscoll, J.L.: Overcoming the barrier to 1000 A/cm width superconducting coatings. Appl. Phys. Lett. 87, 162505 (2005).
18.Kang, S., Goyal, A., Li, J., Gapud, A.A., Martin, P.M., Heatherly, L., Thompson, J.R., Christen, D.K., List, F.A., Paranthaman, M., and Lee, D.F.: High-performance high-Tc superconducting wires. Science 311, 1911 (2006).
19.Varanasi, C.V., Burke, J., Brunke, L., Wang, H., Sumption, M., and Barnes, P.N.: Enhancement and angular dependence of transport critical current density in pulsed laser deposited YBa2Cu3O7-x+BaSnO3 films in applied magnetic fields. J. Appl. Phys. 102, 63909 (2007).
20.Varanasi, C.V., Burke, J., Brunke, L., Wang, H., Lee, J.H., and Barnes, P.N.: Critical current density and microstructure variations in YBa2Cu3O7-x+BaSnO3 films with different concentrations of BaSnO3. J. Mater. Res. 23, 3363 (2008).
21.Wee, S.H., Goyal, A., Specht, E.D., Cantoni, C., Zuev, Y.L., Selvamanickam, V., and Cook, S.: Enhanced flux pinning and critical current density via incorporation of self-assembled rare-earth barium tantalate nanocolumns within YBa2Cu3O7-δ films. Phys. Rev. B 81, 140503 (2010).
22.Wee, S.H., Goyal, A., Zuev, Y.L., Cantoni, C., Selvamanickam, V., and Specht, E.D.: Formation of, double-perovskite, nanocolumns and their contribution to flux-pinning and Jc in Nb-doped YBa2Cu3O7-δ films. Appl. Phys. Express 3, 023101 (2010).
23.Cantoni, C., Gao, Y.F., Wee, S.H., Specht, E.D., Gazquez, J., Meng, J.Y., Pennycook, S.J., and Goyal, A.: Strain-driven oxygen deficiency in self-assembled, nanostructured, composite oxide films. ACS Nano 5, 4783 (2011).
24.Wang, H.Y. and Wang, J.: Interfacial defects and flux-pinning effects in nanostructured YBa2Cu3O7-δ thin films. IEEE Trans. Appl. Supercond. 19, 3395 (2009).
25.Barnes, P.N., Haugan, T.J., Varanasi, C.V., and Campbell, T.A.: Flux pinning behavior of incomplete multilayered lattice structures in YBa2Cu3O7-δ. Appl. Phys. Lett. 85, 4088 (2004).
26.Winterbottom, W.L.: Equilibrium shape of a small particle in contact with a foreign substrate. Acta Metall. 15, 303 (1967).
27.Mele, P., Matsumoto, K., Horide, T., Ichinose, A., Mukaida, M., Yoshida, Y., Horii, S., and Kita, R.: Ultra-high flux pinning properties of BaMO3-doped YBa2Cu3O7-x thin films (M = Zr, Sn). Supercond. Sci. Technol. 21, 32002 (2008).
28.Ichinose, A., Mele, P., Horide, T., Matsumoto, K., Goto, G., Mukaida, M., Kita, R., Yoshida, Y., and Horii, S.: Microstructures of REBa2Cu3Oy adding BaZrO3 or BaSnO3. Physica C 468, 1627 (2008).
29.Narayan, J. and Larson, B.C.: Domain epitaxy: A unified paradigm for thin film growth. J. Appl. Phys. 93, 278 (2003).
30.Blamire, M.G., MacManus-Driscoll, J.L., Mathur, N.D., and Barber, Z.H.: The materials science of functional oxide thin films. Adv. Mater. 21, 3827 (2009).
31.Foltyn, S.R., Wang, H., Civale, L., Maiorov, B., and Jia, Q.X.: The role of interfacial defects in enhancing the critical current density of YBa2Cu3O7-δ coatings. Supercond. Sci. Technol. 22, 125002 (2009).



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed