English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/19469
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Magnetic properties of CoCr2S4

AutorSagredo, V.; Morón, M. Carmen; Delgado, G. E.
Palabras claveMagnetic semiconductors
Ferrimagnetism
Spinel
Fecha de publicaciónoct-2006
EditorElsevier
CitaciónPhysica B: Condensed Matter 384(1-2): 82-84 (2006)
ResumenThe magnetic properties of CoCr2S4 have been studied by DC and AC magnetization experiments in the temperature range 1.8–350 K. The temperature dependence of the DC magnetization, together with a calculated saturation magnetization per molecule of 2.73μB at 1.8 K, suggests that CoCr2S4 presents a ferrimagnetic behavior with a critical temperature of 223 K. Both the real and the imaginary parts of the AC magnetic susceptibility exhibit a sudden increase at 225 K. Between 250 and 200 K the real part of the susceptibility(χ′) is typical of a material at the phase transition from a paramagnetic to a long-range-ordered state with Tc=223±2 K. The imaginary part (χ″) presents a cusp at 120 K. An interesting behavior appears below 8 K, where χ′ is strongly reduced and simultaneously χ″ is increasing showing a maximum at 4.3 K. This particular evolution of χ″ with the temperature suggests a richer magnetic behavior for CoCr2S4 at low temperatures.
Descripción3 pages, 4 figures.-- Proceeding of the Seventh Latin American Workshop on Magnetism, Magnetic Materials and their Applications.
Versión del editorhttp://dx.doi.org/10.1016/j.physb.2006.05.156
URIhttp://hdl.handle.net/10261/19469
DOI10.1016/j.physb.2006.05.156
ISSN0921-4526
Aparece en las colecciones: (ICMA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.