Synthesis and electron spin resonance of La2/3Ca1/3MnO3 nanowires

Toloman, D; Mihailescu, G; Darabont, A; Pop, CVL; Olenic, L; Popa, A; Raita, O; Jivanescu, Mihaela; Grecu, MN; Giurgiu, LM; Idziak, S; Hoffmann, SK

Synthesis and electron spin resonance of La2/3Ca1/3MnO3 nanowires

Author:

Toloman, D

Mihailescu, G ; Darabont, A ; Pop, CVL ; Olenic, L ; Popa, A ; Raita, O ; Jivanescu, Mihaela ; Grecu, MN ; Giurgiu, LM ; Idziak, S ; Hoffmann, SK

Keywords:

nanowires, colossal magnetoresistence manganites, esr, manganites, epr, Science & Technology, Technology, Physical Sciences, Materials Science, Multidisciplinary, Optics, Physics, Applied, Materials Science, Physics, ESR, MANGANITES, EPR, 0205 Optical Physics, 0206 Quantum Physics, 0303 Macromolecular and Materials Chemistry, Optoelectronics & Photonics, 5102 Atomic, molecular and optical physics

Abstract:

La2/3Ca1/3MnO3 (LCMO) nanowires were prepared using a sol-gel process and an anodically oxidized aluminum template. Scanning electron microscopy (SEM) shows that the nanowires are almost parallel and their diameter is around 40 nm. The temperature dependence of the electron spin resonance (ESR) linewidth is similar to that observed for the case of nanostructured LCMO. From this dependence, the determined magnetic transition temperature, T-C, of the LCMO nanowires, is of the order of 120-130 K.