DC magnetization of titania supported on reduced graphene oxide flakes
DC magnetization of a series of titania nanocomposites modified with reduced graphene oxide (rGO) has been investigated. Hysteresis loops observed at room temperature disappeared at low temperatures. At a temperature of about 100 K, a phase transition to the superferromagnetic order state was observ...
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2021
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oai:doaj.org-article:dc9a51a1095740b489edcdb065feae882021-12-05T14:11:03ZDC magnetization of titania supported on reduced graphene oxide flakes1605-812710.1515/rams-2021-0059https://doaj.org/article/dc9a51a1095740b489edcdb065feae882021-10-01T00:00:00Zhttps://doi.org/10.1515/rams-2021-0059https://doaj.org/toc/1605-8127DC magnetization of a series of titania nanocomposites modified with reduced graphene oxide (rGO) has been investigated. Hysteresis loops observed at room temperature disappeared at low temperatures. At a temperature of about 100 K, a phase transition to the superferromagnetic order state was observed, probably due to the linear expansion and self-reorientation of the magnetic moments. Processes associated with magnetic moment reorientation can cause a hysteresis loop to disappear at low temperatures as well as superferromagnetic ordering. It was suggested that the isolated nanoparticle in the nanopore could be used to create a “compass” at a nanometer-sized level that would be many times more sensitive than the conventional one. Measurements of the zero-field cooling and field cooling modes do not exclude the possibility of the coexistence of a superparamagnetic state.Guskos NikoZolnierkiewicz GrzegorzGuskos AleksanderAidinis KonstantinosGlenis SpirosWanag AgnieszkaKusiak-Nejman EwelinaNarkiewicz UrszulaMorawski Antoni W.De Gruyterarticlemagnetismnanocomposites tio2/rgophase transitionTechnologyTChemical technologyTP1-1185ENReviews on Advanced Materials Science, Vol 60, Iss 1, Pp 794-800 (2021) |
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magnetism nanocomposites tio2/rgo phase transition Technology T Chemical technology TP1-1185 |
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magnetism nanocomposites tio2/rgo phase transition Technology T Chemical technology TP1-1185 Guskos Niko Zolnierkiewicz Grzegorz Guskos Aleksander Aidinis Konstantinos Glenis Spiros Wanag Agnieszka Kusiak-Nejman Ewelina Narkiewicz Urszula Morawski Antoni W. DC magnetization of titania supported on reduced graphene oxide flakes |
description |
DC magnetization of a series of titania nanocomposites modified with reduced graphene oxide (rGO) has been investigated. Hysteresis loops observed at room temperature disappeared at low temperatures. At a temperature of about 100 K, a phase transition to the superferromagnetic order state was observed, probably due to the linear expansion and self-reorientation of the magnetic moments. Processes associated with magnetic moment reorientation can cause a hysteresis loop to disappear at low temperatures as well as superferromagnetic ordering. It was suggested that the isolated nanoparticle in the nanopore could be used to create a “compass” at a nanometer-sized level that would be many times more sensitive than the conventional one. Measurements of the zero-field cooling and field cooling modes do not exclude the possibility of the coexistence of a superparamagnetic state. |
format |
article |
author |
Guskos Niko Zolnierkiewicz Grzegorz Guskos Aleksander Aidinis Konstantinos Glenis Spiros Wanag Agnieszka Kusiak-Nejman Ewelina Narkiewicz Urszula Morawski Antoni W. |
author_facet |
Guskos Niko Zolnierkiewicz Grzegorz Guskos Aleksander Aidinis Konstantinos Glenis Spiros Wanag Agnieszka Kusiak-Nejman Ewelina Narkiewicz Urszula Morawski Antoni W. |
author_sort |
Guskos Niko |
title |
DC magnetization of titania supported on reduced graphene oxide flakes |
title_short |
DC magnetization of titania supported on reduced graphene oxide flakes |
title_full |
DC magnetization of titania supported on reduced graphene oxide flakes |
title_fullStr |
DC magnetization of titania supported on reduced graphene oxide flakes |
title_full_unstemmed |
DC magnetization of titania supported on reduced graphene oxide flakes |
title_sort |
dc magnetization of titania supported on reduced graphene oxide flakes |
publisher |
De Gruyter |
publishDate |
2021 |
url |
https://doaj.org/article/dc9a51a1095740b489edcdb065feae88 |
work_keys_str_mv |
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1718371447940841472 |