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Título

Spontaneous magnetization related to internal energy in an assembly with long-range interaction: Predicted universal features fingerprints in experimental data from Fe and Ni

Autor Ayuela, Andrés ; March, Norman H.
Palabras clave Materials Science
Antiferromagnetism
Metallic ferromagnets
Spontaneous magnetization
Specific heat
Internal energy
Blume-Emery-Griffiths (BEG) model
Fecha de publicación 18-ago-2008
EditorElsevier
Citación Physics Letters A 372(34): 5617-5620 (2008)
ResumenIn recent work we have dealt with antiferromagnetism in materials with long-range interactions. Here, we extend low-temperature theoretical study of Grout and March on metallic ferromagnets. Using experimental data on Fe and Ni on spontaneous magnetization M(T) and specific heat c(T), we relate M(T) and internal energy E(T) for 0<T<TC with TC the Curie temperature. An appropriate plot shows that the experimental data on Fe and Ni then collapse on to a common curve. To gain theoretical insight the Blume–Emery–Griffiths infinite-range model is used to connect M and E. A related “universality” is exposed.
Descripción 4 pages, 4 figures.-- Printed version published on Aug 18, 2008.
Versión del editorhttp://dx.doi.org/10.1016/j.physleta.2008.06.091
URI http://hdl.handle.net/10261/8507
DOI10.1016/j.physleta.2008.06.091
ISSN0375-9601
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