Skip to main content Accessibility help
×
Home

Superconductivity of Dc Reactive Magnetron Sputtered Epitaxial TiN/NbN Superlattices

  • M. Shinn (a1), B. -S. Hong (a1) and S. A. Barnett (a1)

Abstract

Epitaxial B1-structure TiN/NbN superlattices have been grown by reactive magnetron sputtering On MgO(001). X-ray diffraction and transmission electron microscopy (TEM) diffraction spectra exhibited up to nine orders of superlattice reflections, indicating that the superlattice interfaces were relatively sharp. TEM images also showed well-defined layers. The superlattice wavelength (∧) dependence of the superconducting transition temperature (Tc), critical Current density (Jc), and electrical resistivity (ρ) have been investigated. Tc values increased from 12 K to 17 K with increasing ∧. Jc in a magnetic field perpendicular to the film surface ranged from 104 to 106 A/cm2, increasing with increasing wavelength and decreasing with increasing applied magnetic field. Jc in a field parallel to the film surface was > 10 times higher, ≈ 107 A/cm2. The resistivity exhibited different ∧ dependencies in three different A ranges.

Copyright

References

Hide All
1. Bell, H., Shy, Y. M., Anderson, D. E. and Toth, L. E., J. Appl. Phys. 39, 2797 (1968).
2. Gray, K. E., Kampwirth, R. T., Murduck, J. M., and Capone, D. W. II, Physica C, 152, 445 (1988).
3. Murduck, J. M., Vicent, J., Schuller, I. K. and Ketterson, J. B., J. Appl. Phys. 62(10), 4216 (1987).
4. Yen, C. M., Toth, L. E., Shy, Y. M., Anderson, D. E. and Rosner, L. G., J. Appl. Phys. 38(5), 2268 (1967).
5. Mirkarimi, P. B., Shinn, M. and Barnett, S. A., J. Vac. Sci. Tchnol. A 10(1), 74 (1992).
6. McWhan, D. B., Synthetic Modulated Structures, edited by Chang, L. L. and Giessen, B. C., (Academic, New York, 1985) ch.2.
7. Shinn, M., Hultman, L. and Barnett, S. A., J. Mater. Res. in press (April, 1992).
8. Klug, H. P. and Alexander, L. E., X-ray Diffraction procedures, 2nd ed. (Wiley, New York, 1974) ch.9.
9. Stowell, M. J., Epitaxial Growth, Part B, edited by Matthews, J. W. (Academic, New York, 1975), ch.5.
10. Shoji, A., Kiryu, S., and Kohjiro, S., Appl. Phys. Lett., 60. (13), 1624 (1992).
11. Makous, J. L., Leavitt, J. A., Mclntyre, L. C. Jr, Maritato, L., Vaglio, R‥, Cucolo, A. and Falco, C. M., Mat. Res. Soc. Symp. Pro. 103, 287 (1988).
12. Murduck, J. M., Ph. D. thesis, Northwestern University, 1983.
13. de Gennes, P. G. and Guyon, E., Phys. Lett. 3, 168 (1963).
14. Hauser, J. J., Theuerer, H. T. and Werthamer, N. R., Phys. Rev. 136, A637 (1964).
15. Bean, C. P., Phys. Rev. Lett. 8, 250 (1962) ; Rev. Mod. Phys, 36, 31 (1964).
16. Fleischer, R. L., Hart, H. R. Jr, Lay, K. W. and Luborsky, F. E., Phys. Rev. B. 40 No. 4, 2163 (1989).
17. Gyorgy, E. M., van Dover, R. B., Jackson, K. A., Schneemeyer, L. F., and Waszczak, J. V., Appl. Phys. Lett., 55(3), 283 (1989).
18. Shinn, M., Mirkarimi, P. B. and Barnett, S. A., unpublished.
19. Zheng, J., Ketterson, J., Falco, C., and Schuller, I., Physica B+C, 108, 945 (1981).
20. Werner, T. R., Ph.D. thesis, Northwestern University, 1983.

Superconductivity of Dc Reactive Magnetron Sputtered Epitaxial TiN/NbN Superlattices

  • M. Shinn (a1), B. -S. Hong (a1) and S. A. Barnett (a1)

Metrics

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