Unusual critical behavior of the electrical resistivity near the first-order magneto structural transition of Gd-5(Si0.1Ge0.9)(4)

• Tipo: Artigo em Revista Científica Internacional
• Data: 2004

Autores

Correia, Francisco C. (Autor) Outra; Araújo, João Pedro (Autor) FCUP; Sousa, João Bessa (Autor) FCUP; Braga, Melissa E. (Autor) Outra; Morellón, Luis (Autor) Outra; Algarabel, Pedro A. (Autor) Outra; Ibarra, Manuel Ricardo (Autor) Outra

Revista

Título: Journal of Magnetism and Magnetic Materials

Vol. 272

Páginas: 2370-2372

ISSN: 0304-8853

Editora: Elsevier

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-000-AM0

DOI: 10.1016/j.jmmm.2003.12.1069

Abstract (EN): We report the temperature dependence of the electrical resistance (R) of Gd-5(Si0.1Ge0.9)(4) near its (martensitic) magnetostructural transition at T-S similar or equal to 84 K, over different series of 10-300 K thermal cycles (> 50). Large hysteresis is observed near T-S, with a progressive change in the R(T) behavior and in the residual resistance upon thermal cycling. At intermediate number of cycles (similar to13 - 28) a pre-martensitic phase occurs just below T-S, with the remarkable property of displaying a universal R(T) behavior.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 3