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

• Type: Article in International Scientific Journal
• Date: 2006

Authors

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

Journal

Title: ADVANCED MATERIALS FORUM II

Vol. 514-516

Pages: 309-313

Publisher: Trans Tech Publications Ltd

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5