ESR of Co 2 + in NH 4 <mml:mrow…
1998; American Physical Society; Volume: 57; Issue: 1 Linguagem: Inglês
10.1103/physrevb.57.246
ISSN1095-3795
AutoresAintzane Goñi, Luís Lezama, Teófilo Rojo, M. E. Foglio, J. A. Valdivia, G. E. Barberis,
Tópico(s)Electrochemical Analysis and Applications
ResumoExperiments of electron-spin resonance (ESR) were performed on ${\mathrm{Co}}^{2+}$ in single-crystal and powder samples of ${\mathrm{NH}}_{4}{\mathrm{NiPO}}_{4}\ensuremath{\cdot}6{\mathrm{H}}_{2}\mathrm{O}$. The angular variation of the resonance field of the crystalline sample can be interpreted in terms of two magnetically nonequivalent sites related by a symmetry operation. From the fitting of the ESR data, the spin-Hamiltonian parameters are determined. A theoretical analysis of these results is presented.
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