Abstract
High-temperature field emission of Re, Pt, Ta, and W is studied by field-emission methods. Metal ions are found to evaporate mainly from the tops of thermal-field microprotrusions produced by high electric fields and temperatures on the emitter surface. For fi eld intensities of up to F=1–2 V/Å and temperatures of 1500–2000 K, the ion currents i are recorded from the entire emitter surface. They range from several tenths of nanoamperes to several nanoamperes. The activation energies of field evaporation determined from the Arrhenius plots logi=f(1/T) are found to be appreciably lower than those calculated within the charge exchange model for known parameters of the process and the metals evaporated. Reasons for such a difference in the activation energies and mechanisms of ion evaporation at high F and T are discussed.
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References
V. N. Shrednik, V. G. Pavlov, A. A. Rabinovich, and B. M. Shaikhin, Izv. Akad. Nauk SSSR, Ser. Fiz. 38, 296 (1974).
V. G. Butenko, O. L. Golubev, E. L. Kontorovich, and V. N. Shrednik, Pis’ma Zh. Tekh. Fiz. 18(8), 86 (1992) [Sov. Tech. Phys. Lett. 18, 275 (1992)].
M. K. Miller and G. D. W. Smith, Atom Probe Microanalysis: Principles and Applications to Material Problems (Materials Research Society, Pittsburgh, 1989; Mir, Moscow, 1993).
Nonincandescent Cathodes, Ed. by M. I. Elinson (Sov. Radio, Moscow, 1974), Chap. 6, pp. 165–169.
V. S. Fomenko, Electronic Properties of Materials: A Handbook (Naukova Dumka, Kiev, 1981).
V. N. Shrednik, Problems of Modern Crystallography (Nauka, Moscow, 1975), pp. 150–171.
R. G. Forbes, Appl. Surf. Sci. 87/88, 1 (1995).
E. W. Muller, Usp. Fiz. Nauk 77, 481 (1962).
R. Gomer and L. W. Swanson, J. Chem. Phys. 39, 2813 (1963).
J. Bardon and M. Audiffren, J. Phys. Colloq. 45, C9-245 (1984).
E. W. Muller and T. T. Tsong, Field Ion Microscopy: An Introduction to Principles, Experiments, and Applications (Elsevier, New York, 1969; Metallurgiya, Moscow, 1972).
R. Vanselov and W. A. Schmidt, Z. Naturforsch. A 21, 1690 (1966).
D. R. Kingham, Surf. Sci. 116, 273 (1982).
Vu Thien Binh and N. Garcia, Ultramicroscopy 42–44, 80 (1992).
D. Rayane, P. Milinon, B. Trobollet, et al., J. Chem. Phys. 91, 3100 (1989).
G. L. Kellog, Surf. Sci. 120, 319 (1982).
H. Jun, P. H. Cutler, and N. N. Miskovsky, J. Appl. Phys. 52, 5320 (1981).
A. A. Rabinovich, Surf. Sci. 70, 181 (1978).
N. Ernst and Th. Jentsch, Phys. Rev. B 24, 6234 (1981).
J. Lui, C. Wu, and T. T. Tsong, Surf. Sci. 246, 157 (1991).
J. Lui, C. Wu, and T. T. Tsong, Phys. Rev. B 43, 11595 (1991).
A. A. Chernov, Modern Crystallography (Nauka, Moscow, 1980), Chap. 1, pp. 8–232.
P. C. Bettler and F. M. Sharbonnier, Phys. Rev. 119, 85 (1960).
I. L. Sokol’skaya, H. Neumann, and E. Klose, Fiz. Tverd. Tela (Leningrad) 6, 1439 (1964) [Sov. Phys. Solid State 6, 1126 (1964)].
D. M. Pautov and I. L. Sokol’skaya, Fiz. Tverd. Tela (Leningrad) 10, 2473 (1968).
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 72, No. 8, 2002, pp. 109–115.
Original Russian Text Copyright © 2002 by Golubev, Shrednik.
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Golubev, O.L., Shrednik, V.N. High-temperature field evaporation of rhenium. Tech. Phys. 47, 1038–1043 (2002). https://doi.org/10.1134/1.1501687
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DOI: https://doi.org/10.1134/1.1501687