• Freitas, G. S.
• Carvalho, M. H.
• Campanelli, R. B.
• Rosa, P. F. S.
• Souza, J. C.
• Mercena, S. G.
• Pagliuso, P. G.
• Pizzi, H. B.
• Béron, F.
• Santos, M. V. Puydinger Dos
• Pirota, K. R.

Abstract

<jats:title>Abstract</jats:title><jats:p>In this work, we investigated the role of different parameters in the synthesis of intermetallic nanowires of CeIn<jats:sub>3</jats:sub> by the metallic-flux nanonucleation (MFNN) method such as template pore diameter, crystallization temperature, heat treatment temperature, and synthesis time. Depending on the growing parameters, we obtained CeIn<jats:sub>3</jats:sub> nanowires (d ∼ 350 nm) or CeAlO<jats:sub>3</jats:sub> nanotubes. For the nanowires, we observed a suppression of the CeIn<jats:sub>3</jats:sub> antiferromagnetic transition from the bulk T<jats:sub>N</jats:sub> ∼ 10 K to the nanowire system T<jats:sub>N</jats:sub> ∼ 3 K, which may be associated with the dimensionality affecting the interplay between magnetic exchange interactions, crystalline electrical field, and Kondo effects. We assume that the CeAlO<jats:sub>3</jats:sub> nanotubes may result from a reaction with the alumina template and consequent rare-earth oxidation. Our work shows that even it is a great challenge to find the correct growth path of a particular intermetallic compound, the MFNN method can be a promising route to obtain rare-earth based nanowires.</jats:p>

Topics

• impedance spectroscopy
• pore
• compound
• nanotube
• intermetallic
• crystallization
• crystallization temperature