Abstract:
A semiempirical model is used to analyse the results of published experiments reporting on the solid-state amorphization reactions in bilayers and multilayers formed by Gd and Co. The role of the interfacial effects in raising the free energy of the initial arrangement in a multilayered configuration, and in promoting the amorphization reaction, is studied in detail. The model explains the observation of amorphous alloys over a broad composition range in the bilayer experiments. The preferred composition obtained in the multilayer experiments is discussed critically and the model prediction of a preferred composition Gd 0.46Co 0.54 is in good agreement with the compositions observed in recent experiments.
Registro:
Documento: |
Artículo
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Título: | Amorphization in Gd-Co alloys and multilayers |
Autor: | Alonso, J.A.; Hojvat De Tendler, R.; Barbiric, D.A.; Riveiro, J.M. |
Filiación: | Departamento de Física Teórica, Universidad de Valladolid, 47011 Valladolid, Spain Instituto de Estudios Nucleares, Centro Atómico Ezeiza, CNEA, 1429 Buenos Aires, Argentina Departamento de Química Inorgánica, Analítica y Química Física, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina Departamento de Física Aplicada, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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Palabras clave: | Amorphization; Amorphous alloys; Auger electron spectroscopy; Composition; Energy dispersive spectroscopy; Ferromagnetic materials; Free energy; Multilayers; Surface reactions; Thickness measurement; X ray diffraction analysis; Solid-state reactions; Gadolinium alloys |
Año: | 2002
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Volumen: | 14
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Número: | 39
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Página de inicio: | 8913
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Página de fin: | 8924
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DOI: |
http://dx.doi.org/10.1088/0953-8984/14/39/301 |
Título revista: | Journal of Physics Condensed Matter
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Título revista abreviado: | J Phys Condens Matter
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ISSN: | 09538984
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CODEN: | JCOME
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09538984_v14_n39_p8913_Alonso |
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Citas:
---------- APA ----------
Alonso, J.A., Hojvat De Tendler, R., Barbiric, D.A. & Riveiro, J.M.
(2002)
. Amorphization in Gd-Co alloys and multilayers. Journal of Physics Condensed Matter, 14(39), 8913-8924.
http://dx.doi.org/10.1088/0953-8984/14/39/301---------- CHICAGO ----------
Alonso, J.A., Hojvat De Tendler, R., Barbiric, D.A., Riveiro, J.M.
"Amorphization in Gd-Co alloys and multilayers"
. Journal of Physics Condensed Matter 14, no. 39
(2002) : 8913-8924.
http://dx.doi.org/10.1088/0953-8984/14/39/301---------- MLA ----------
Alonso, J.A., Hojvat De Tendler, R., Barbiric, D.A., Riveiro, J.M.
"Amorphization in Gd-Co alloys and multilayers"
. Journal of Physics Condensed Matter, vol. 14, no. 39, 2002, pp. 8913-8924.
http://dx.doi.org/10.1088/0953-8984/14/39/301---------- VANCOUVER ----------
Alonso, J.A., Hojvat De Tendler, R., Barbiric, D.A., Riveiro, J.M. Amorphization in Gd-Co alloys and multilayers. J Phys Condens Matter. 2002;14(39):8913-8924.
http://dx.doi.org/10.1088/0953-8984/14/39/301