Hostname: page-component-848d4c4894-8kt4b Total loading time: 0 Render date: 2024-07-07T15:10:01.951Z Has data issue: false hasContentIssue false
  • English
  • Français

Epitaxial Growth and Superconducting Properties of Yba2Cu3O7 Thin Films and Yba2Cu3O7/Dy(Pr)Yba2Cu3O7 Superlattices

Published online by Cambridge University Press:  28 February 2011

J.-M. Triscone ,
M.G. Karkut ,
O. Brunner ,
L. Antognazza ,
A.D. Kent  and
ø. Fischer
J.-M. Triscone
Affiliation:
Département de la Matiére Condensée, Université de Genéve, 24 Quai E.‐Ansermet, 1211 Genéve, Switzerland.
M.G. Karkut
Affiliation:
Laboratoire de Chimie Minérale B, Université de Rennes I, avenue du Général‐Leclerc, 35042 Rennes cedex, France.
O. Brunner
Affiliation:
Département de la Matiére Condensée, Université de Genéve, 24 Quai E.‐Ansermet, 1211 Genéve, Switzerland.
L. Antognazza
Affiliation:
Département de la Matiére Condensée, Université de Genéve, 24 Quai E.‐Ansermet, 1211 Genéve, Switzerland.
A.D. Kent
Affiliation:
Département de la Matiére Condensée, Université de Genéve, 24 Quai E.‐Ansermet, 1211 Genéve, Switzerland.
ø. Fischer
Affiliation:
Département de la Matiére Condensée, Université de Genéve, 24 Quai E.‐Ansermet, 1211 Genéve, Switzerland.
Get access

Abstract

We have prepared in situ REBa2Cu3O7 (REBCO) (RE= Y, Pr, Dy) thin films and YBC0/Dy(Pr)BC0 superlattices by single target dc planar magnetron sputtering. YBCO/DyBCO superlattices have been realized with modulation wavelength as short as 24Å, i.e., a unit cell of YBCO alternates with a unit cell of DyBCO, on average. The superconducting properties of such superlattices are indistinguishable from those of single layers. Tco's (zero resistance) are between 85 and 89K, and the residual resistivity ratios are between 2.5 and 3. In contrast to these results, when YBCO is layered with PrBCO, which is insulating, a dramatic change in the superconducting properties is observed. We have been able to artificially vary the coupling between single 12Å unit cell of YBCO by interposing insulating planes of PrBCO. As the YBCO layer separation increases, T is reduced and the transition broadens showing evidence of 2‐D superconducting fluctuations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 169: Symposium M – High Temperature Superconductors: Fundamental Properties and Novel Materials Processing , 1989 , 545
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

References:

1 See, for example, Yvon, K. and Francois, M., Z. Phys. B 76, 413 (1989).Google Scholar
2 See, for example, Junod, A., in Physical properties of High T superconductors, vol. II, edited by Ginsberg, D.M. (World Scientificy Singapore apr. 1990).Google Scholar
3 Triscone, J.‐M., Karkut, M.G., Antognazza, L., Brunner, O., and Fischer, O., Phys. Rev. Lett. 63, 1016 (1989).Google Scholar
4 Triscone, J.‐M., Karkut, M.G., Brunner, O., Antognazza, L., Decroux, M. and Fischer, O., Physica C 158, 293 (1989).Google Scholar
5 Li, H.C., Linker, G., Ratzel, F., Smithey, R., and Geerk, J., Appl. Phys. Lett. 52, 1098 (1988).Google Scholar
6 Brunner, O., Triscone, J.‐M., Karkut, M.G., Antognazza, L., Kent, A.D., Driscoll, T., Boichat, T., and Fischer, O., to appear in the Proceedings of the M2S‐HTSC conference, Stanford, 1989.Google Scholar
7 Dalichaouch, Y., Torikachvili, M.S., Early, E.A., Lee, B.W., Seaman, C.L., Yang, K.N., Zhou, H., and Maple, M.B., Sol. Statt. Com. 65, 1001 (1988); A. Kebede, C.S. Jee, J. Schwegler, J.E. Crow, T. Mihalisln, G.H. Myer, R.E. Salomon, P. Schlottmann, M.V. Kuric, S.H. Bloom and R.P. Guertin, Phys. Rev. B 40, 4453 (1989); J.L. Peng, P. Klavins, R.N. Shelton, H.B. Radouski, P.A. Hahn, and L. Bernardez, Phys. Rev. B 40, 4517 (1989).Google Scholar
8 Hulliger, F., and Ott, H.R., Z. Phys. B 67, 291 (1987).Google Scholar
9 Li, W.‐H., Lynn, J.W., Skanthakumar, S., Clinton, T.W., Kebede, A., Jee, C.‐S., Crow, J.E., and Mihalisin, T., Phys. Rev. B (to be published).Google Scholar
10 Poppe, U., Prieto, P., Schubert, J., Soltner, H., Urban, K., and Buchal, C., Sol. Stat. Comm. 71, 569 (1989).Google Scholar
11 Triscone, J.‐M., Fischer, O., Brunner, O., Antognazza, L., Kent, A.D., and Karkut, M.G., Submitted to Phys. Rev. Lett.Google Scholar
12 Aslamazov, L.G., and Larkin, A.I., Sov. Phys.‐Solid St. 10, 875 (1968).Google Scholar