Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles

Magnetization is a key property of magnetic materials. Nevertheless, a satisfactory, analytical description of the temperature dependence of magnetization in double perovskites such as strontium ferromolybdate is still missing. In this work, we develop, for the very first time, a model of the magnet...

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Autor principal:	Gunnar Suchaneck
Formato:	article
Lenguaje:	EN
Publicado:	Pensoft Publishers 2021
Materias:	Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/1b53779507554cb39956a145f14eff19
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spelling	oai:doaj.org-article:1b53779507554cb39956a145f14eff192021-12-03T04:30:36ZMagnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles10.3897/j.moem.7.3.757862452-1779https://doaj.org/article/1b53779507554cb39956a145f14eff192021-09-01T00:00:00Zhttps://moem.pensoft.net/article/75786/download/pdf/https://moem.pensoft.net/article/75786/download/xml/https://moem.pensoft.net/article/75786/https://doaj.org/toc/2452-1779Magnetization is a key property of magnetic materials. Nevertheless, a satisfactory, analytical description of the temperature dependence of magnetization in double perovskites such as strontium ferromolybdate is still missing. In this work, we develop, for the very first time, a model of the magnetization of nanosized, magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles. The temperature dependence of magnetization was approximated by an equation consisting of a Bloch-law spin wave term, a higher order spin wave correction, both taking into account the temperature dependence of the spin-wave stiffness, and a superparamagnetic term including the Langevin function. In the limit of pure ferromagnetic behavior, the model is applicable also to SFMO ceramics. In the vicinity of the Curie temperature (T/TC &gt; 0.85), the model fails.Gunnar SuchaneckPensoft PublishersarticleElectronicsTK7800-8360ENModern Electronic Materials, Vol 7, Iss 3, Pp 85-90 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electronics TK7800-8360
spellingShingle	Electronics TK7800-8360 Gunnar Suchaneck Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles
description	Magnetization is a key property of magnetic materials. Nevertheless, a satisfactory, analytical description of the temperature dependence of magnetization in double perovskites such as strontium ferromolybdate is still missing. In this work, we develop, for the very first time, a model of the magnetization of nanosized, magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles. The temperature dependence of magnetization was approximated by an equation consisting of a Bloch-law spin wave term, a higher order spin wave correction, both taking into account the temperature dependence of the spin-wave stiffness, and a superparamagnetic term including the Langevin function. In the limit of pure ferromagnetic behavior, the model is applicable also to SFMO ceramics. In the vicinity of the Curie temperature (T/TC &gt; 0.85), the model fails.
format	article
author	Gunnar Suchaneck
author_facet	Gunnar Suchaneck
author_sort	Gunnar Suchaneck
title	Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles
title_short	Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles
title_full	Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles
title_fullStr	Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles
title_full_unstemmed	Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles
title_sort	magnetization of magnetically inhomogeneous sr2femoo6-δ nanoparticles
publisher	Pensoft Publishers
publishDate	2021
url	https://doaj.org/article/1b53779507554cb39956a145f14eff19
work_keys_str_mv	AT gunnarsuchaneck magnetizationofmagneticallyinhomogeneoussr2femoo6dnanoparticles
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Magnetization of magnetically inhomogeneous Sr2FeMoO6-δ nanoparticles

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