The superexchange interactions and magnetic ordering in low-dimentional ludwigite Ni5GeB2O10
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- 作者：S.N. Sofronovaa ; ssn@iph.krasn.ru" class="auth_mail" title="E-mail the corresponding author ; L.N. Bezmaternykha ; E.V. Eremina ; b ; I.I. Nazarenkob ; N.V. Volkova ; b ; A.V. Kartasheva ; E.M. Moshkinaa ; b
- 关键词：Ludwigites ; Magnetic order ; Heat capacity ; Exchange interactions ; Ferrimagnetic
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2016
- 出版时间：1 March 2016
- 年：2016
- 卷：401
- 期：Complete
- 页码：217-222
- 全文大小：1851 K
文摘
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The single crystals of Ni5Ge(BO5)2 with a ludwigite structure were grown.
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Magnetic and the specific heat measurements were performed.
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The calculation of the exchange interactions shows a competition between interactions.
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The magnetic behaviour corresponds to ions moments part freezing or spin-glass state.
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We propose two models of magnetic ordering in Ni5Ge(BO5)2.