Title :
Critical behaviour and magneticaloric effect in La2NiMnO6 nanoparticles
Author :
Tien, M.V. ; Ho, T. ; Thanh, T. ; Phan, T. ; Phan, M. ; Yu, S.
Author_Institution :
Dept. of Phys., Chungbuk Nat. Univ., Cheongju, South Korea
Abstract :
It has been known that A2B\´B"O6 typed compounds (A is an alkaline-earth or rare-earth element, B\´ and B" are different transition-metal elements) belong to the double perovskite family, which have attacted considerable interes due to their complex electrical-magnetic properties. Among these, La2NiMnO6 is a ferromagnetic (FM) semiconductor, and considered as one of the most promising materials for applications in spintronic devices. Though the crystal structure, electromagnetic, and magnetic properties of this material have been widely studied, the nature of FM interactions and magnetocaloric effect (MCE) has not been fully understood yet. Within this context, it is essential to investigate the correlation between the MCE and critical behavior near the FM-para-magnetic (PM) transition in this material.
Keywords :
ferromagnetic materials; ferromagnetic-paramagnetic transitions; lanthanum compounds; magnetic particles; magnetic semiconductors; magnetocaloric effects; nanomagnetics; nanoparticles; nickel compounds; paramagnetic materials; La2NiMnO6; critical behaviour; ferromagnetic interactions; ferromagnetic semiconductor; ferromagnetic-paramagnetic transition; magnetocaloric effect; nanoparticles; spintronic devices; Frequency modulation; Magnetic devices; Magnetic properties; Magnetometers; Physics; Superconducting magnets; Temperature measurement;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157347
