Pregled bibliografske jedinice broj: 710477
Magnetic properties of iron phosphate glass and glass-ceramics
Magnetic properties of iron phosphate glass and glass-ceramics // Journal of the American Ceramic Society, 97 (2014), 8; 2517-2524 doi:10.1111/jace.12951 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 710477 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Magnetic properties of iron phosphate glass and glass-ceramics
Autori
Pavić, Luka ; Graca, M.P.F. ; Skoko, Željko ; Moguš-Milanković, Andrea ; Valente, M.A.
Izvornik
Journal of the American Ceramic Society (0002-7820) 97
(2014), 8;
2517-2524
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
iron phosphate glass; glass-ceramics; magnetic interactions; structural properties
Sažetak
Magnetic properties of crystallized iron phosphate glasses and relationship between structural and magnetic properties modifications that occur during crystallization have been investigated. Iron phosphate glass exhibits the spin-glass (SG) behavior and represents a prototype of solid with disordered spatially distributed magnetic moments. Glass of the composition 43Fe 2O3-57P2O5 (wt%) was heat-treated in air at 893, 923, and 1073 K for 24 h. The samples were studied using X-ray diffraction, Raman spectroscopy, and dc magnetic measurements. The magnetic measurements show dominant antiferromagnetic (AF) interactions for all samples. The starting glass exhibits SG behavior, whereas magnetic behavior of samples heat-treated at 893 and 923 K, which contain Fe3(P2O 7)2 crystalline phase embedded in glass matrix, is ascribed to a mixture of superparamagnetism and SG behavior. In the sample heat-treated at 1073 K, several peaks in the magnetization curves were observed which correspond to the various crystalline phases present in the sample: Fe3(P2O7)2, Fe4(P2O7)3 and Fe(PO3)3. Hysteresis loops show paramagnetic behavior at 300 K. Small curvature is present at low temperature (5 K) that can be ascribed to the AF ordering in the samples.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Kemija
POVEZANOST RADA
Projekti:
098-0982929-2916 - Utjecaj strukture na električna svojstva (bioaktivnih) stakala i keramike (Moguš-Milanković, Andrea, MZOS ) ( CroRIS)
119-0982886-1009 - Struktura i svojstva posebnih nanomaterijala dobivenih suvremenim tehnikama (Tonejc, Antun, MZOS ) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus