Spin reorientation transition and exotic magnetism in dilute Gd1-xYx single crystals (x < 0.1) revealed by ac magnetoresistance studies

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Santos, João Alfredo M (Autor) Outra; Sousa, João Bessa (Autor) FCUP; Araújo, João Pedro (Autor) FCUP; Correia, Francisco C. (Autor) Outra; Collingwood, Joanna F. (Autor) Outra; Palmer, S. B. (Autor) Outra

Revista

Título: ADVANCED MATERIALS FORUM II

Vol. 514-516

Páginas: 309-313

Editora: Trans Tech Publications Ltd

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-004-NVG

Abstract (EN): We measured dilute Gd1-xYx single crystals (x < 0.1) samples using an a.c. magnetoresistance technique. This technique consists in applying a constant current to the sample and measuring the temperature dependent a.c. voltage under a time modulated external magnetic field (f = 333 Hz). The a.c. voltage signal is decomposed in real and imaginary components or, alternatively, in amplitude and phase signals relative to the a.c. magnetic field. This technique proved to be extremely sensitive and effective to display all the magnetic phase transitions revealed by the previous d.c. transport measurements, plus an additional spectrum of other critical features.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5