Microstructures of YBa2Cu3O7-x superconducting thin films grown on a SrTiO3(100) substrate

Chen, C. H.; Kwo, J.; Hong, M.
March 1988
Applied Physics Letters;3/7/1988, Vol. 52 Issue 10, p841
Academic Journal
We report microstructures of superconducting YBa2Cu3O7-x thin films epitaxially grown on a SrTiO3(100) substrate. Transmission electron microscopy studies reveal epitaxial, highly ordered grains ∼5000 Å in size for both types of films with either the a or c axis perpendicular to the film. Defects due to out-of-phase boundaries are observed in the former case. The high density of twin boundaries found in the latter case seems to correlate with the higher Jc observed in thin-film samples.


Related Articles

  • Microstructure of epitaxial ErBa2Cu3O7-x thin films grown on MgO (100) substrates by rf magnetron sputtering. Chang, J.; Nakajima, M.; Yamamoto, K.; Sayama, A. // Applied Physics Letters;6/5/1989, Vol. 54 Issue 23, p2349 

    The microstructural properties of superconducting ErBa2Cu3O7-x films on single-crystal MgO substrates are studied by transmission electron microscopy. The as-grown films are single-crystal-like and are composed of subgrains of 0.1–0.2 μm in size. Due to annealing, the dislocations at...

  • Magnetization and flux creep in thin YBa2Cu3O7-delta films. Sheriff, E.; Prozorov, R.; Yeshurun, Y.; Shaulov, A.; Koren, G.; Chabaud-Villard, C. // Journal of Applied Physics;11/1/1997, Vol. 82 Issue 9, p4417 

    Reports on the thickness dependence of the irreversible magnetization in thin superconducting Y1Ba2Cu3O7-delta films. Nonmonotonous dependence of the persistent current density on the film thickness; Surface pinning and variations in the surface microstructures; Crossing of the relaxation...

  • Microstructure of NbN epitaxial ultrathin films grown on A-, M-, and R-plane sapphire. Espiau de Lamaëstre, R.; Odier, Ph.; Villégier, J.-C. // Applied Physics Letters;12/3/2007, Vol. 91 Issue 23, p232501 

    We compared ultrathin NbN films (2.5–10 nm) simultaneously grown by dc reactive sputtering at 600 °C on A, M, and R orientations of sapphire substrates. Film structures and superconducting properties were characterized. We show that actual NbN device films on R-Al2O3 are (135) oriented...

  • Tuning porosity of YBa2Cu3O7-δ vicinal films by insertion of Y2BaCuO5 nanoparticles. Emergo, R. L. S.; Wu, J. Z.; Haugan, T. J.; Barnes, P. N. // Applied Physics Letters;12/5/2005, Vol. 87 Issue 23, p232503 

    High critical current density (Jc) is the most critical specification for high-temperature-superconductor-coated conductors as required by numerous electric power-related applications. This has motivated an intensive research effort on the effects of microstructure on Jc. By growing...

  • Magnetization dynamics in dilute Pd1-xFex thin films and patterned microstructures considered for superconducting electronics. Golovchanskiy, I. A.; Bolginov, V. V.; Abramov, N. N.; Stolyarov, V. S.; Ben Hamida, A.; Chichkov, V. I.; Roditchev, D.; Ryazanov, V. V. // Journal of Applied Physics;2016, Vol. 120 Issue 16, p163902-1 

    Motivated by recent burst of applications of ferromagnetic layers in superconducting digital and quantum elements, we study the magnetism of thin films and patterned microstructures of Pd0.99Fe0.01. In this diluted ferromagnetic system, a high-sensitivity ferromagnetic resonance (FMR) experiment...

  • Superconducting contacts for use in niobium thin film applications. Garfield, James R.B. // Review of Scientific Instruments;Apr97, Vol. 68 Issue 4, p1906 

    Describe a simple method for forming superconducting contacts to niobium thin films as used for current perpendicular to the plane measurements of the resistance of magnetic multilayers using an indium-Roses alloy. Measurement of the superconducting transition temperature; Cooling of samples;...

  • Influence of working gas pressure on the properties of thin films of high-temperature superconductors obtained by magnetron sputtering. Vorob’ev, A. K.; Gaponov, S. V.; Gusev, S. A.; Drozdov, Yu. N.; Klyuenkov, E. B.; Luchin, V. I. // Technical Physics Letters;Feb98, Vol. 24 Issue 2, p159 

    The surface morphology, composition, microstructure, and electrical properties of thin films of YBa[sub 2]Cu[sub 3]O[sub 7-x] high-temperature superconductors, obtained by inverted magnetron sputtering, have been studied as a function of the pressure of the working gas mixture and results are...

  • Features of the microwave breakdown of a high-T[sub c] superconducting film at defects. Buznikov, N. A.; Pukhov, A. A. // Technical Physics Letters;Sep98, Vol. 24 Issue 9, p697 

    The influence of nonsuperconducting defects on the power density for microwave breakdown of a high-T[sub c] superconducting film is investigated theoretically. It is found that the scenario of the destruction of superconductivity depends substantially on the shape of the defect and on the ratio...

  • Superconducting Energy Gap Distribution in c-Axis Oriented MgB[sub 2] Thin Film from Point Contact Study. Naidyuk, Yu. G.; Yanson, I. K.; Tyutrina, L. V.; Bobrov, N. L.; Chubov, P. N.; Kang, W. N.; Kim, Hyeong-Jin; Choi, Eun-Mi; Lee, Sung-Ik // JETP Letters;3/10/2002, Vol. 75 Issue 5, p238 

    We have analyzed about a hundred voltage-dependent differential resistance dV/dI(V) curves of metallic point contacts between c-axis-oriented MgB[sub 2] thin film and Ag, which exhibit clear Andreev reflection features connected with the superconducting gap. About one half of the curves show the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics