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Effect of Crystallization on the Magnetic Properties of 40Fe2O3-60P2O5 Glass (CROSBI ID 612998)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Pavić, Luka ; Graca M.P.F. ; Skoko, Željko ; Valente, M.A ; Moguš-Milanković, Andrea Effect of Crystallization on the Magnetic Properties of 40Fe2O3-60P2O5 Glass // Book of Abstract, Borate Phosphate 2014. Prag: ICARIS Ltd., 2014. str. 117-117

Podaci o odgovornosti

Pavić, Luka ; Graca M.P.F. ; Skoko, Željko ; Valente, M.A ; Moguš-Milanković, Andrea

engleski

Effect of Crystallization on the Magnetic Properties of 40Fe2O3-60P2O5 Glass

Glass is by nature a meta-stable solid and tends to achieve the equilibrium by crystallization. Binary iron phosphate glass with composition 40Fe2O3-60P2O5 (mol%) and Fe2+/Fetotal ratio of ~0.2 was crystallized at various temperatures for 24 h. Present structure study, performed by XRD and Raman spectroscopy, revealed systematic formation of various crystalline phases, embedded in glass matrix. The aim of this work is the investigation of the influence of controlled crystallization on magnetic interactions in binary iron phosphate glass. This type of glass exhibits the spin-glass behaviour and represents a prototype glass with disordered spatially distributed magnetic moments. Investigation of magnetic nature for as-prepared glass and glass-ceramics was conducted by means of vibrating sample magnetometer (VSM). Dominant antiferromagnetic interactions, demonstrated by the characteristic cusps in the susceptibilities at low temperature and the negative values of the paramagnetic temperatures, were confirmed for all samples. The temperature dependence of the magnetization showed various magnetic transitions and deviation from Curie-Weiss law at low temperatures. Magnetic interactions involving iron ions depend on the various crystalline phases and their amounts present in glass-ceramics. Obtained results represent novel view on the correlation between structure and magnetic behavior in partially crystallized iron phosphate glass

željezno fosfatno staklo; staklo-keramika; strukturna svojstva; magnetske interakcije

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Podaci o prilogu

117-117.

2014.

objavljeno

Podaci o matičnoj publikaciji

Book of Abstract, Borate Phosphate 2014

Prag: ICARIS Ltd.

Podaci o skupu

International conference Borate Phosphate 2014

predavanje

30.06.2014-04.07.2014

Pardubice, Češka Republika

Povezanost rada

Fizika, Kemija