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Ferromagnetic properties of iron-porphyrin-like structurally deformed graphene
Univ Tehran, Inst Biochem & Biophys, Tehran, Iran..
Shahid Beheshti Univ, Fac Phys, Tehran 19839, Iran..
Univ Tehran, Inst Biochem & Biophys, Tehran, Iran..
KTH, Skolan för teknikvetenskap (SCI), Tillämpad fysik, Material- och nanofysik. Shahid Beheshti Univ, Fac Phys, Tehran 19839, Iran.
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2022 (engelsk)Inngår i: Physica. E, Low-Dimensional systems and nanostructures, ISSN 1386-9477, E-ISSN 1873-1759, Vol. 139, artikkel-id 115165Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Long-range magnetic order in graphene has been the subject of study for many researches due to its fundamental and technological prospects. Many theoretical researches have predicted the long-range ferromagnetic exchange in porphyrin-like graphene due to doping the transition metals centers in their structures. However, the experimental observations for such structures, have been rarely reported. In the present work the ferromagnetic properties of iron doped porphyrin-like graphene (Fe-N-Gr) are experimentally considered and the results are reported. At first, the Fe-N-Gr sample is synthesized by mechanochemical mixing of Fe, N, and C sources followed by high temperature pyrolysis treatment. The sample shows the high saturation magnetization of 140 emu/gr at room temperature. Raman, XRD, and XPS results as well as microscopic images revealed that the observed ferromagnetic behavior is induced by doped Fe-N sites in graphene, however the exact microscopic origin cannot be explained and further investigation is needed.These results pave the way for the synthesis of magnetic porphyrin-like graphene with structurally deformed structure.

sted, utgiver, år, opplag, sider
Elsevier BV , 2022. Vol. 139, artikkel-id 115165
Emneord [en]
Magnetic graphene, Fe-N-Gr, Long-range ferromagnetic, Porphyrin-like Gr
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Identifikatorer
URN: urn:nbn:se:kth:diva-311670DOI: 10.1016/j.physe.2022.115165ISI: 000782649100002Scopus ID: 2-s2.0-85124301153OAI: oai:DiVA.org:kth-311670DiVA, id: diva2:1655698
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QC 20220503

Tilgjengelig fra: 2022-05-03 Laget: 2022-05-03 Sist oppdatert: 2022-11-30bibliografisk kontrollert

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