Transport and magnetic properties of the Er5Si4 compound

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

Authors

pereira, a. m. (Author) FCUP; araujo, j. p. (Author) FCUP; braga, m. e. (Author) Other; pinto, r. p. (Author) Other; ventura, j. (Author) Other; correia, f. c. (Author) Other; teixeira, j. m. (Author) FCUP; sousa, j. b. (Author) FCUP; magen, c. (Author) Other; algarabel, p. a. (Author) Other; morellon, l. (Author) Other; ibarra, m. r. (Author) Other

Journal

Title: Journal of Alloys and Compounds

Vol. 423

Pages: 66-68

ISSN: 0925-8388

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 6 Citations

Other information

Authenticus ID: P-004-GHF

DOI: 10.1016/j.jallcom.2005.12.039

Abstract (EN): In this work we report detailed measurements of the electrical resistivity rho(T), thermopower S(T) and magnetization M(7) of Er5Si4 near the structural and magnetic phase transitions. These transitions are well decoupled, with the structural transition occurring at T-S = 190 K (on cooling) and the magnetic transition occurring at T-C similar to 30 K. The large thermal hysteresis occurring in the structural transition demonstrates its first-order nature being accompanied with a strong variation Delta S/S essentially due the change in the number of carriers. Our magnetic and transport measurements below the magnetic phase transition suggest the presence of weak ferromagnetism.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 3