Magnetic properties of Ln2CoGe4O12 and LnBCoGe4O12 (Ln = Gd, Tb, Dy, Ho, Er; B = Sc, Lu) | Zendy

Diming Xu | Zendy; Maxim Avdeev | Zendy; Peter D. Battle | Zendy; D. H. Ryan | Zendy

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Magnetic properties of Ln₂CoGe₄O₁₂ and LnBCoGe₄O₁₂ (Ln = Gd, Tb, Dy, Ho, Er; B = Sc, Lu)

Author(s) -

Diming Xu,

Maxim Avdeev,

Peter D. Battle,

D. H. Ryan

Publication year - 2017

Publication title -

dalton transactions

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.98

H-Index - 184

eISSN - 1477-9234

pISSN - 1477-9226

DOI - 10.1039/c7dt03649c

Subject(s) - lanthanide , materials science , crystallography , chemistry , analytical chemistry (journal) , ion , organic chemistry , chromatography

Polycrystalline samples of Ln 2 CoGe 4 O 12 (Ln = Gd, Tb, Dy, Ho or Er) and LnBCoGe 4 O 12 (B = Sc or Lu) have been prepared and characterised by a combination of magnetometry, 155 Gd Mössbauer spectroscopy and, in the case of Tb 2 CoGe 4 O 12 and TbScCoGe 4 O 12 , neutron diffraction. The holmium- and erbium-containing compositions remain paramagnetic down to 2 K, those containing dysprosium behave as spin glasses and the terbium and gadolinium-containing compounds show long-range magnetic order with transition temperatures below 4 K in all cases. The data can be rationalized qualitatively in terms of the interplay between magnetic anisotropy and crystal field effects.

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