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arXiv · 0801.3763

EPR and magnetization studies on single crystals of a heterometallic (Cu^{II}} and Cr^{III}) complex: zero-field splitting determination

Nikolina Novosel·Dijana Žilić·Damir Pajić·Marijana Jurić·Berislav Perić·Krešo Zadro·Boris Rakvin·Pavica Planinić
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Abstract

Magnetic properties of single crystals of the heterometallic complex [Cu(bpy)$_3$]$_2$[Cr(C$_2$O$_4$)$_3$]NO$_3\cdot $9H$_2$O (bpy = 2,2'-bipyridine) have been investigated. From the recorded EPR spectra, the spin-Hamiltonian parameters have been determined. The magnetization measurements have shown magnetic anisotropy at low temperatures, which has been analysed as a result of the zero-field splitting of the Cr$^{\mathrm{III}}$ ion. By fitting the exactly derived magnetization expression to the measured magnetization data, the axial zero-field splitting parameter, D, has been calculated. Comparing to the EPR measurements, it has been confirmed that $D$ can be determined from the measurements of the macroscopic magnetization on the single crystals.

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Nikolina Novosel, Dijana Žilić, Damir Pajić, Marijana Jurić, Berislav Perić, Krešo Zadro, Boris Rakvin, Pavica Planinić. 2008-01-24. EPR and magnetization studies on single crystals of a heterometallic (Cu^{II}} and Cr^{III}) complex: zero-field splitting determination. https://doi.org/10.1016/j.solidstatesciences.2008.01.021

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