dc.creator | Nikolić, Violeta N. | |
dc.creator | Tadić, Marin | |
dc.creator | Mraković, Ana Đ. | |
dc.creator | Spasojević, Vojislav | |
dc.date.accessioned | 2018-10-11T11:33:12Z | |
dc.date.available | 2018-10-11T11:33:12Z | |
dc.date.issued | 2018 | |
dc.identifier.isbn | 9788087294819 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/7850 | |
dc.description.abstract | Nano iron oxides have been intensively investigated due to their various potential biomedical applications. ε-Fe2O3 phase exerted internal coercivity value up to ~20 kOe, high Curie temperature (Tc= 510 K), and magnetoelectric character. Accordingly, epsilon phase is recognized as a suitable material for medical spintronic biosensors production, that present important part for the lab-on-a-chip systems. Noteworthy, ε-Fe2O3 phase exerts peculiar magnetic behavior. To get better insight into the magnetism of this material, ε-Fe2O3/SiO2 sample was prepared by the combination of the sol-gel synthesis and microemulsion method (Tann=1050 °C, tann= 4h). Afterwards, the sample was exposed to post-annealing treatment at 100 °C and 200 °C. Synthesized material was preliminary examined by XRD and SQUID techniques. Coercivity changes, induced by the post-annealing temperature oscillations, were monitored by hysteretic measurements. Sample annealed at 1050 °C for 4h, showed coercivity ~20 kOe. The same sample performed to the post-annealing treatment at 100 °C, exerted significantly decreased coercivity (~1600 Oe). Further rise of the post-annealing temperature (200 °C) resulted in the increased coercivity ~15 kOe. Obtained study showed that there is insufficient knowledge concerning the ε-Fe2O3 coercivity changes of the polymorph. The more detailed investigation will be conducted, in order to advance the control of the epsilon phase magnetic properties. © 2018 TANGER Ltd. All Rights Reserved. | en |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45015/RS// | |
dc.rights | restrictedAccess | |
dc.source | NANOCON 2017 - Conference Proceedings, 9th International Conference on Nanomaterials - Research and Application | |
dc.subject | Coercivity | en |
dc.subject | Phase transformations | en |
dc.subject | Ε-Fe2O3 phase | en |
dc.title | Unusual temperature dependence of coercivity in ε-Fe2O3 phase | en |
dc.type | conferenceObject | |
dc.rights.license | ARR | |
dcterms.abstract | Војислав, С; Виолета, Н Н; Марин, Т; Aна, М; | |
dc.rights.holder | © 2018 TANGER Ltd. All Rights Reserved | |
dc.citation.volume | 2017-October | |
dc.citation.spage | 27 | |
dc.citation.epage | 32 | |
dc.identifier.wos | 000452823300003 | |
dc.description.other | 9th International Conference on Nanomaterials - Research and Application, NANOCON 2017; Hotel Voronez IBrno; Czech Republic; 18 October 2017 through 20 October 2017; Code 135697 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85051871531 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_vinar_7850 | |