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Molecular Beam Epitaxy of Layered Bi-Sr-Ca-Cu-O Compounds

  • D.G. Schlomtt (a1) (a2), J.N. Eckstein (a3), I. Bozo Vic (a3), A.F. Marshall (a4), J.T. Sizemore (a2), Z.J. Chent (a1), K.E. Von Dessonneck (a3), J.S. Harris (a1) and J.C. Bravmant (a2)...

Abstract

The in situ epitaxial growth of Bi‐Sr‐Ca‐Cu‐O films by molecular beam epitaxy (MBE) is reported. The suitability of ozone to the MBE growth of cuprate superconductors is discussed. Molecular beams of the constituents were periodically shuttered to grow various Bi2Sr2Can‐1CunOx phases, including 2201, 2212,2223,2245, and layered mixtures of these phases. Using these techniques a superconducting film with TC onset near 100 K and Tc (ρ=0) of 81 K was achieved under entirely MBE conditions (Pchamber≤xl0‐4 Torr during growth and cooling). The films are smooth on an atomic scale. The results demonstrate the ability of shuttered MBE growth to selectively grow Bi2Sr2Can‐1CunOx phases.

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1 Schlom, D.G., Marshall, A.F., Sizemore, J.T., Chen, Z.J., Eckstein, J.N., Bozovic, I., von Dessonneck, K.E., Harris, J.S. Jr., and Bravman, J.C., submitted to J. Crystal Growth.
2 Berkley, D.D., Johnson, B.R., Anand, N., Beauchamp, K.M., Conroy, L.E., Goldman, A.M., Maps, J., Mauersberger, K., Mecartney, M.L., Morton, J., Tuominen, M., and Zhang, Y‐J., Appl. Phys. Lett. 53,1973 (1988).
3 Nakayama, Y., Ochimizu, H., Maeda, A., Kawazu, A., Uchinokura, K., and Tanaka, S., Jpn. J. Appl. Phys. 28, L1217 (1989).
4 Bormann, R. and Nolting, J., to be published in Physica C.

Molecular Beam Epitaxy of Layered Bi-Sr-Ca-Cu-O Compounds

  • D.G. Schlomtt (a1) (a2), J.N. Eckstein (a3), I. Bozo Vic (a3), A.F. Marshall (a4), J.T. Sizemore (a2), Z.J. Chent (a1), K.E. Von Dessonneck (a3), J.S. Harris (a1) and J.C. Bravmant (a2)...

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