Investigation of the magnetic properties in double perovskite R2CoMnO6 single crystals (R = rare earth: La to Lu).
J Phys Condens Matter
; 27(42): 426002, 2015 Oct 28.
Article
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| MEDLINE
| ID: mdl-26442994
ABSTRACT
We have successfully synthesized the series of the double-perovskite R2CoMnO6 (R = rare earth La to Lu) single crystals and have investigated their magnetic properties. The ferromagnetic order of Co(2+)/Mn(4+) spins emerges mainly along the c axis. Upon decreasing the size of rare earth ion, the magnetic transition temperature decreases linearly from 204 K for La2CoMnO6 to 48 K for Lu2CoMnO6, along with the enhancement of monoclinic distortion. The temperature and magnetic-field dependences of magnetization reveal the various magnetic characteristics such as the metamagnetic transition in R = Eu, the isotropic nature of rare earth moment in R = Gd, and the reversal of magnetic anisotropy in R = Tb and Dy. Our results offer comprehensive information for understanding the roles of mixed-valent magnetic ions and rare earth magnetic moments on the magnetic properties.
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MEDLINE
Idioma:
En
Revista:
J Phys Condens Matter
Asunto de la revista:
BIOFISICA
Año:
2015
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Article