The synthesis of ferromagnetic La0.75Ca0.25MnO 3 nanowires by a sol-gel method

Küçük Resim Yok

Tarih

2010

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

National Institute of Optoelectronics

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Özet

In this study, densely packed a0.75Ca0.25MnO 3 (LCMO) nanowires were synthesized within a porous anodic aluminum oxide (AAO) template by means of a sol-gel method using nitrate as raw material and ethylene glycol as the chelating agent. It was observed from measurements of hysteresis curves that the magnetic behavior of the LCMO nanowire arrays was strongly dependent on the pH of the solution. As it has been reported that bulk polycrystalline a0.75Ca0.25MnO3 samples have a Curie temperature of 224 K [1], it is interesting to find that nanowires produced at pH 3 show ferromagnetic properties at room temperature.

Açıklama

Anahtar Kelimeler

Ferromagnetism, Manganites, Nanowires, Sol-gel

Kaynak

Journal of Optoelectronics and Advanced Materials

WoS Q Değeri

Scopus Q Değeri

Q4

Cilt

12

Sayı

2

Künye