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 SM ISO690:2012MINGALIEVA (KOROBCHENKO), Liudmila, VORONKOVA, Violeta, GALEEV, Ravil, SUKHANOV, A., MELNYK, Silvia, PRODIUS, Denis, TURTA, Constantin. EPR investigation of exchange interactions between neodymium ions in {[Nd2(α-C4H3OCOO)6(H2O)2]}n. In: Applied Magnetic Resonance, 2010, vol. 37, pp. 737-750. ISSN 0937-9347. DOI: https://doi.org/10.1007/s00723-009-0058-7 |
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  Applied Magnetic Resonance |
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| Volumul 37 / 2010 / ISSN 0937-9347 /ISSNe 1613-7507 | ||||||
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| DOI:https://doi.org/10.1007/s00723-009-0058-7 | ||||||
| Pag. 737-750 | ||||||
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Electron paramagnetic resonance (EPR) of a new compound {[Nd2(α-C4H3OCOO)6(H2O)2]}n composed of Nd3+-Nd3+ dimers is reported. The anisotropy parameters of the spin-spin interaction are determined by fitting experimental and simulated spectra in X- and Q-bands. It is shown that the anisotropy of the exchange interaction gives the main contribution to the anisotropy of the spin-spin interaction. The observed anisotropy disagrees with the expected in the model of the isotropic exchange interaction between real spins. A feature of the EPR spectrum not described by the model of the isolated Nd-Nd dimers and reflecting the magnetization transfer between dimers is detected. The magnetization transfer due to both the relaxation transitions and the interdimer interaction is considered. |
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| Cuvinte-cheie Anisotropy parameters, Electron paramagnetic resonance, EPR spectra, Interdimer interactions, Isotropic exchange, Magnetization transfer, Neodymium ions, Q-bands, Relaxation transitions, Simulated spectra, Spin-spin interaction |
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