Applied Physics Letters
Feedback | Help | Exit
Applied Physics Letters
   
 
 
 
Previous Article
Fabrication and properties of all-refractory Nb/Al–AlOx–Ti junctions for microbolometers and microrefrigerators
Fabrication of all-refractory Nb/Al–AlOx–Ti superconducting tunnel junctions using selective titanium etching process (STEP) is described. Results including anodization properties of Ti, and...
Next Article
Directly coupled direct current superconducting quantum interference device magnetometers based on ramp-edge Ag:YBa2Cu3O7 – x/PrBa2Cu3O7 – x/Ag:YBa2Cu3O7 – x junctions
Directly coupled dc superconducting quantum interference device (SQUID) magnetometers on LaAlO3 substrates were fabricated using ramp-edge superconductor/normal-metal/superconductor junctions, where A...

Pulsed laser deposition of superconducting Nb-doped strontium titanate thin films

Appl. Phys. Lett. 72, 3065 (1998); doi:10.1063/1.121542

Issue Date: 8 June 1998

You are not logged in to this journal. Log in

Arnold Leitner, Charles T. Rogers, and John C. Price
Department of Physics, University of Colorado at Boulder, Boulder, Colorado 80309

David A. Rudman
Division 814.03, NIST, 325 Broadway, Boulder, Colorado 80303

David R. Herman
Department of Physics, Penn State University, University Park, Pennsylvania 16802
We report on the growth of superconducting Nb-doped SrTiO3 thin films on LaAlO3 substrates by pulsed laser deposition. We find optimum Nb doping and high mobility for growth near 870 °C and chamber pressures below 3 × 10–4 Pa (2 × 10–6 Torr). The transport properties were measured from 300 K to 150 mK. The most highly doped samples display metallic behavior, and are superconducting below 350 mK, with transition temperatures similar to those of bulk single crystals. ©1998 American Institute of Physics.
History: Received 2 September 1997; accepted 7 April 1998
Permalink: http://link.aip.org/link/?APPLAB/72/3065/1
BUY THIS ARTICLE   (US$28)
Download HTML Download Sectioned HTML Download PDF (63 kB) View Cart

KEYWORDS and PACS

Keywords
PACS
  • 81.15.Fg
    Materials science Methods of deposition of films and coatings; film growth and epitaxy Laser deposition
  • 74.76.Db
    Superconductivity Superconducting films Other superconducting films
  • 74.70.Ad
    Superconductivity Superconducting materials (excluding high-Tc compounds) Metals; alloys and compounds: A15, C15, Chevrel and Laves phases (Nb-based alloys, carbides, nitrides, ternary molybdenum chalcogenides, etc.)
  • 68.55.-a
    Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties) Thin film structure and morphology
  • 74.10.+v
    Superconductivity Occurrence, potential candidates
  • 74.62.Dh
    Superconductivity Transition temperature variations Effects of crystal defects, doping and substitution
  • YEAR: 1998

RELATED DATABASES


To view database links for this article,
you need to log in.
To view database links for this article,
you need to log in.

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

REFERENCES (22)
View in Separate Window/Tab
For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.
  1. H. P. R. Frederikse, W. R. Thurber, and W. R. Hosler, Phys. Rev. A 134, 442 (1964).
  2. M. Gurvitch, H. L. Stormer, R. C. Dynes, J. M. Graybeal, and D. C. Jacobsen, in Superconducting Materials: Proceedings of the 1986 Fall MRS Meeting, edited by J. Bevk and A. I. Braginski (Material Research Society, Pittsburgh, 1987), p. 47.
  3. Y. Tokura, Y. Taguchi, Y. Okada, Y. Fujishima, T. Arima, K. Kumagai, and Y. Iye, Phys. Rev. Lett. 70, 2126 (1993).
  4. K. L. Myers, Ph.D. thesis, Stanford University, 1993 (unpublished).
  5. E. R. Pfeiffer and J. F. Schooley, Phys. Lett. A 29, 589 (1969).
  6. H. Suzuki, H. Bando, Y. Ootuka, I. H. Inoue, T. Yamamoto, K. Takahashi, and Y. Nishihara, J. Phys. Soc. Jpn. 65, 1529 (1996).
  7. J. F. Schooley, W. R. Hosler, E. Ambler, J. H. Becker, M. L. Cohen, and C. S. Koonce, Phys. Rev. Lett. 14, 305 (1965).
  8. A. Baratoff and G. Binnig, Physica B 108, 1335 (1981).
  9. J. K. Hulm, C. K. Jones, R. C. Miller, and T. Y. Tien, Proceedings of the 10th Conference on Low Temperature Physics, 1967 (unpublished), Vol. IIA, p. 86;
    10. J. K. Hulm, M. Ashkin, D. W. Deis, and C. K. Jones, Prog. Low Temp. Phys. 6, 205 (1970).
  10. A. Yoshida, H. Tamura, K. Gotoh, N. Fujimaki, S. Hasuo, D. K. Chin, and T. Van Duzer, Physica B 169, 459 (1991).
  11. H.-M. Christen, J. Mannhart, E. J. Willimas, and Ch. Gerber, Phys. Rev. B 49, 12095 (1994).
  12. B. Mayer, J. Mannhart, and H. Hilgenkamp, Appl. Phys. Lett. 68, 3031 (1996).
  13. A. Fujimori, I. Hase, M. Nakamura, H. Namatame, Y. Fujishima, Y. Tokura, M. Abbate, F. M. F. de Groot, M. T. Czyzyk, J. C. Fuggle, O. Strebel, F. Lopez, M. Domke, and G. Kaindl, Phys. Rev. B 46, 9841 (1992).
  14. D. K. Chin and T. Van Duzer, Appl. Phys. Lett. 58, 753 (1991).
  15. T. Tomio, H. Miki, H. Tabata, T. Kawai, and S. Kawai, J. Appl. Phys. 76, 5886 (1994).
  16. Nb-doped strontium titanate single crystal targets were purchased from Commercial Crystal Laboratories, Inc., Naples, FL. Nb-doped STO is made by adding stoichiometric Nb2O5 to stoichiometric SrTiO3. The formula SrTi1 – xNbxO3 assumes that all of the extra O and Ti has segregated from the crystal during growth. Elemental analysis on the Nb-doping concentration was carried out by Charles Evans and Associates, Redwood City, CA, using proton induced x-ray emission.
  17. A. Roshko, F. J. B. Stork, D. A. Rudman, D. J. Aldrich, and P. A. Morris Hotsenpiller, J. Cryst. Growth 174, 398 (1997).
  18. W. Eidelloth, W. J. Gallager, R. P. Robertazzi, R. H. Koch, B. Oh, and R. L. Sandstrom, Appl. Phys. Lett. 59, 1257 (1991).
  19. L. J. van der Pauw, Philips Res. Rep. 13, 1 (1958).
  20. O. N. Tufte and P. W. Chapman, Phys. Rev. 155, 796 (1967).
  21. C. Lee, J. Destry, and J. L. Brebner, Phys. Rev. B 11, 2299 (1975).
  22. H. P. R. Frederikse and W. R. Hosler, Phys. Rev. 161, 822 (1967).

CITING ARTICLES
For access to citing articles, you need to log in.
For access to citing articles, you need to Log in.


Copyright © American Institute of Physics