Abstract
The electrical properties of a GaSb-V2Ga5 eutectic composition have been studied. This system comprises long oriented whiskers of a superconducting V2Ga5 phase formed by directed crystallization in a semiconducting GaSb matrix. The properties of samples can be controlled by varying the angle between the directions of electric current and whiskers. The observed features of the temperature dependence of the resistivity and the possibility of controlling the properties of the eutectic system are explained by the formation of discrete superconducting regions comprising linked Josephson junctions of the superconductor-semiconductor-superconductor type (S-Sm-S-Sm-S‖), whiskers consisting of linked microscopic bridges (S-S′-S-S′-S‖), and infinite clusters comprising combinations of the above two components (S-S′-S-Sm-S-S′-S‖).
Similar content being viewed by others
References
G. I. Isakov, Pis’ma Zh. Tekh. Fiz. 22(24), 70 (1996) [Tech. Phys. Lett. 22, 1032 (1996)].
Yu. V. Kislinskii, E. A. Stepantsov, Z. G. Ivanov, and T. Claeson, Fiz. Tverd. Tela (St. Petersburg) 43, 581 (2001) [Phys. Solid State 43, 602 (2001)].
J. A. Alarco and E. Olsson, Phys. Rev. B 52, 13625 (1995).
D. Winkler, V. M. Zhang, P. A. Nilsson, et al., Phys. Rev. Lett. 72, 1260 (1994).
L. G. Aslamazov and M. V. Fistul’, Zh. Éksp. Teor. Fiz. 81, 382 (1981) [Sov. Phys. JETP 54, 206 (1981)].
L. G. Aslamazov and M. V. Fistul’, Zh. Éksp. Teor. Fiz. 83, 1170 (1982) [Sov. Phys. JETP 56, 666 (1982)].
L. G. Aslamazov and M. V. Fistul’, Zh. Éksp. Teor. Fiz. 86, 1516 (1984) [Sov. Phys. JETP 59, 887 (1984)].
Th. Schapers, R. P. Muller, A. Kaluza, et al., Appl. Phys. Lett. 75, 391 (1999).
M. I. Aliev, G. I. Isakov, F. Yu. Aliev, and A. T. Éminzade, Dokl. Akad. Nauk SSSR 306, 583 (1989) [Sov. Phys. Dokl. 34, 454 (1989)].
M. I. Aliev and G. I. Isakov, Izv. Akad. Nauk SSSR, Neorg. Mater. 16, 782 (1980).
Author information
Authors and Affiliations
Additional information
__________
Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 29, No. 19, 2003, pp. 40–47.
Original Russian Text Copyright © 2003 by Isakov.
Rights and permissions
About this article
Cite this article
Isakov, G.I. Controlled superconductivity of a semiconductor-superconductor eutectic composition. Tech. Phys. Lett. 29, 810–812 (2003). https://doi.org/10.1134/1.1623853
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1623853