Abstract
The properties of a quasicrystalline phase in the Al-Pd-Tc system are studied for the first time. X-ray investigations demonstrate that the quasicrystalline phase in the Al70Pd21Tc9 alloy has a face-centered icosahedral quasi-lattice with parameter a=6.514 Å. Annealing experiments have revealed that this icosahedral phase is thermodynamically stable. The heat capacity of an Al70Pd21Tc9 sample is measured in the temperature range 3–30 K. The electrical resistivity and magnetic susceptibility are determined in the temperature range 2–300 K. The electrical resistivity is found to be high (600 µΩ cm at room temperature), which is typical of quasicrystals. The temperature coefficient of electrical resistivity is small and positive at temperatures above 50 K and negative at temperatures below 50 K. The magnetic susceptibility has a weakly paramagnetic character. The coefficient of linear contribution to heat capacity (γ=0.24 mJ/(g-atom K2)) and the Debye characteristic temperature (Θ=410 K) are determined. The origin of the specific features in the vibrational spectrum of the quasicrystals is discussed.
Similar content being viewed by others
References
D. Shechtman, I. Blech, D. Gratias, and J. W. Cahn, Phys. Rev. Lett. 53, 1951 (1984).
S. Ebalard and F. Spaepen, J. Mater. Res. 4, 39 (1989).
W. Ohashi and F. Spaepen, Nature 330(6148), 555 (1987).
A. P. Tsai, A. Inoue, and T. Masumoto, Jpn. J. Appl. Phys. 27, L1587 (1988).
A. P. Tsai, A. Inoue, Y. Yokoyama, and T. Masumoto, Philos. Mag. Lett. 61, 9 (1990).
A. P. Tsai, A. Inoue, and T. Masumoto, Philos. Mag. Lett. 62, 95 (1990).
C. Beeli, H.-U. Nissen, and J. Robadey, Philos. Mag. Lett. 63, 87 (1991).
N. S. Athanasiou, Mod. Phys. Lett. B 11, 367 (1997).
M. N. Mikheeva, A. A. Teplov, K. G. Bukov, et al., Philos. Mag. Lett. (2000) (in press).
J. W. Cahn, D. Shechtman, and D. Gratias, J. Mater. Res. 1, 13 (1986).
C. Bellic, Ph. D. Thesis, ETH-Zurich (1992).
A. A. Nikonov, Prib. Tekh. Éksp., No. 6, 168 (1995).
M. N. Khlopkin, N. A. Chernoplekov, and P. A. Cheremnykh, Preprint No. 3549/10, IAÉ (Kurchatov Institute of Atomic Energy, Moscow, 1982).
A. M. Bratkovskii, Yu. A. Danilov, and G. I. Kuznetsov, Fiz. Met. Metalloved. 68, 1045 (1989).
V. G. Vaks, V. V. Kamyshenko, and G. D. Samolyuk, Phys. Lett. A 132(2–3), 131 (1988).
A. Junod, T. Jarlborg, and J. Muller, Phys. Rev. B 27(3), 1568 (1983).
W. T. Berg, Phys. Rev. 167, 583 (1968).
W. F. Giaugue and P. F. Meads, J. Am. Chem. Soc. 63(7), 1897 (1941).
M. A. Chernikov, A. Bianchi, E. Felder, et al., Europhys. Lett. 35(6), 431 (1996).
K. Edagawa, M. A. Chernikov, A. Bianchi, et al., Phys. Rev. Lett. 77(6), 1071 (1996).
G. F. Syrykh, M. G. Zemlyanov, N. A. Chernoplekov, and B. I. Savel’ev, Zh. Éksp. Teor. Fiz. 81(1), 308 (1981) [Sov. Phys. JETP 54, 165 (1981)].
L. G. Gomersall and B. L. Gyorffy, Phys. Rev. Lett. 33(21), 1286 (1974).
W. L. McMillan, Phys. Rev. B 1(2), 331 (1968).
A. P. Zhernov, N. A. Chernoplekov, and É. Mrozan, Metals with Nonmagnetic Impurity Atoms (Énergoatomizdat, Moscow, 1992).
Yu. M. Kagan and Ya. A. Ioselevskii, Zh. Éksp. Teor. Fiz. 44(1), 284 (1963) [Sov. Phys. JETP 17, 195 (1963)].
N. A. Chernoplekov and M. G. Zemlyanov, Zh. Éksp. Teor. Fiz. 49(2), 449 (1965) [Sov. Phys. JETP 22, 315 (1965)].
G. Kh. Panova and B. N. Samoilov, Zh. Éksp. Teor. Fiz. 49(2), 456 (1965) [Sov. Phys. JETP 22, 320 (1965)].
G. Kh. Panova, A. A. Shikov, N. A. Chernoplekov, et al., Zh. Éksp. Teor. Fiz. 90(4), 1351 (1986) [Sov. Phys. JETP 63, 791 (1986)].
A. P. Zhernov and G. R. Augst, Fiz. Tverd. Tela (Leningrad) 9(8), 2196 (1967) [Sov. Phys. Solid State 9, 1724 (1967)].
V. M. Manichev and E. A. Gusev, Fiz. Tverd. Tela (St. Petersburg) 41(3), 372 (1999) [Phys. Solid State 41, 334 (1999)].
Author information
Authors and Affiliations
Additional information
__________
Translated from Fizika Tverdogo Tela, Vol. 42, No. 12, 2000, pp. 2113–2119.
Original Russian Text Copyright © 2000 by Mikheeva, Panova, Teplov, Khlopkin, Chernoplekov, Shikov.
Rights and permissions
About this article
Cite this article
Mikheeva, M.N., Panova, G.K., Teplov, A.A. et al. Thermodynamic and kinetic properties of an icosahedral quasicrystalline phase in the Al-Pd-Tc system. Phys. Solid State 42, 2177–2183 (2000). https://doi.org/10.1134/1.1332136
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1332136