INVESTIGADORES
CANEIRO Alberto
artículos
Título:
Magnetic and electric properties of SrFeMoO
Autor/es:
D.M. SANCHEZ; D. NIEBIESKIKWIAT; A. CANEIRO; L.B. MORALES; M. VASQUEZ MANSILLA; L.E. HUESO
Revista:
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2001 vol. 226 p. 895 - 897
ISSN:
0304-8853
Resumen:
We present electrical resistivity () and magnetic susceptibility () data of the SrFeMoO double perovskite. Wefound that the as prepared sample shows semiconducting (¹) in the whole temperature range and a magnetoresistancebehavior typical of electron tunneling at the grain boundaries (gb). When the oxygen of the gb is removed drops oneorder of magnitude. Below the magnetic ordering temperature ¹+405K and above 590K this sample is metallic(d/d¹´0), while for ¹(¹(590K we observe a weak localization. The (¹) data follow the Curie}Weiss law only ina short temperature range above ¹.
