Abstract
The crystal structure and transport properties of epitaxial c-oriented YBa2Cu3O7−x films are investigated for high-T c layer thicknesses from 5 to 300 nm. The films were prepared by laser deposition. Films less than 30 nm thick become predominantly single-domain in the direction of the c axis. As the thickness decreases, the orthorhombicity parameter of the YBaCuO lattice decreases, which correlates with the critical temperature degradation observed in films less than 9 nm thick. The obtained thickness dependence of the effective microwave surface resistance of a YBaCuO film agrees well with the computational result obtained in the framework of local electrodynamics for samples with a constant microwave conductance.
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References
T. Terashima, K. Shimura, Y. Bando et al., Phys. Rev. Lett. 67, 1201 (1991).
C. Kwon, Li Qi, X. X. Xi et al., Appl. Phys. Lett. 57, 1289 1993).
H. Kohlstedt, J. Schubert, K. Herrmann et al., Supercond. Sci. Technol. 6, 246 1993).
M. Z. Cieplak, S. Guha, S. Vadlamannati et al., Phys. Rev. B 50, 12876 1994).
M. Suzuki, N. Kawahara, H. Hoshizaki, and T. Imura, Jpn. J. Appl. Phys. 33, 578 1994).
I. S. Baikov and A. I. Golovashkin, Prikl. Fiz. 1, 22 (1995).
I. Bozovic, J. N. Eckstein, and G. F. Virshup, Physica C 235–240, 178 1994).
R. K. Belov, A. V. Varganov, B. A. Volodin et al., Pis’ma Zh. Tekh. Fiz. 20(11), 1 (1994) [Tech. Phys. Lett. 20, 429 1994)].
A. Khule, J. L. Skov, S. Hjorth et al., Appl. Phys. Lett. 64, 3178 1994); S. D. Harkness and R. K. Singh, J. Appl. Phys. 75 (1994).
Yu. N. Nozdrin, P. P. Visheslavtzev, I. D. Tokman, and I. M. Gordion, IEEE Trans. Appl. Supercond. 5, 1424 (1995).
R. C. Taber, Rev. Sci. Instrum. 61, 2200 1991).
A. Ya. Basovich, R. K. Belov, V. A. Markelov et al., J. Supercond. 5, 1614 1992).
G. F. Kuznetsov, Kristallografiya 40, 936 1995).
K. Yvon and M. Francois, Z. Phys. B 76, 414 1989).
Yu. A. Osip’yan, N. S. Afonikova, G. A. Emel’chenko et al. JETP Lett. 46, 241 1987).
K. Kamigaki, H. Terauchi, T. Kerashima et al., Physica C 159, 505 1989).
N. Klein, H. Chaloupka, G. Muller et al., J. Appl. Phys. 67, 6940 1990).
V. V. Talanov, unpublished.
N. Newman and W. G. Lyons, J. Supercond. 6, 119 1993).
J. P. Turneaure, J. Halbritter, and H. A. Schwettman, J. Supercond. 4, 341 1991).
V. V. Shmidt, Introduction to the Physics of Superconductors [in Russian], Nauka, Moscow, 1982.
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Pis’ma Zh. Éksp. Teor. Fiz. 63, No. 8, 608–613 (25 April 1996)
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Varganov, A.V., Vopilkin, E.A., Vysheslavtsev, P.P. et al. Structure and transport properties of ultrathin YBa2Cu3O7−x films. Jetp Lett. 63, 644–650 (1996). https://doi.org/10.1134/1.567081
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DOI: https://doi.org/10.1134/1.567081