Abstract
Alloys which are subject to an order-disorder transformation are in some respects a link between amorphous solids on the one hand and crystalline elemental solids on the other hand. For example, alloys in the disordered state and amorphous solids both have non-periodic structures (although of somewhat different natures), whereas alloys in the ordered state and crystalline elemental solids both have periodic structures (again of somewhat different natures).
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References and Footnotes
M. Hansen, Constitution of Binary Alloys ( New York: McGrav Hill, 1958 ).
D. J. Gillespie and A. I, Schindler, Proc. of Conf. on Magnetism and Magnetic Materials, 1971, p. 461.
A. I. Schindler and D. J. Gillespie, Proc. of 12th Int. Conf. on Low Temp. Physics (Kyoto, Japan, Academic Press of Japan, 1971, p. 277 ).
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The 431/2% Ni specificheat specimen showed only slight long-range order. More recent work (currently in progress) on the same specimen after much more extensive ordering apparently yields the same simple γ T+βT3 dependence and a still further reduction in γ.
See, for example, J. R. Schrieffer, J. Appl. Physics 39, 642 (1968).
For this particular resistivity specimen, A (ord) was larger than A (disord), as was found for the ferromagnetic specimens. It is possible that this particular resistivity specimen was in fact ferromagnetic, since the properties of these alloys depend sensitively upon thermal treatment; for example, doubling the length of the homogenizing anneal for samples near the critical composition significantly reduced the magnetization. This sensitive dependence of the properties upon thermal treatment could account for the differences between the present results and those of Herr and Besnus (Physics Letters 39A, 83 (72)) who found, for example, that specimens with as little as 41 at. % Ni were ferromagnetic.
A. I. Schindler and M. J. Rice, Phys. Rev. 164. 759 (1967).
P. Lederer and D. L. Mills, Phys. Rev. 165, 837 (1968).
R. W. Houghton, M. P. Sarachik, and J. S. Kouvel, Solid State Comm. 8, 943 (1970).
R. W. Houghton, M. P. Sarachik, and J. S. Kouvel, Phys. Rev. Letters 25, 238 (1970).
Indicated errors are for a95% confidence level; for the resistivity data, an additional uncertainty of ~3% arises in connection with the determination of the form factor.
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© 1973 Plenum Press
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Gillespie, D.J., Mackliet, C.A., Schindler, A.I. (1973). Magnetic Properties, Anomalous Electrical Resistivities, and Specific Heats of Ordered and Disordered NiPt and Nearby Compositions. In: Hooper, H.O., de Graaf, A.M. (eds) Amorphous Magnetism. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4568-8_37
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DOI: https://doi.org/10.1007/978-1-4613-4568-8_37
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