TbO+in a calcium apatite matrix featuring a triple trigger-type relaxation of magnetization
Kazin PE, Zykin MA, Magdysyuk OV, Utochnikova VV, Gorbachev EA, Kremer RK, Schnelle W, Felser C, Jansen M (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 48
Pages Range: 5299-5307
Journal Issue: 16
DOI: 10.1039/c9dt01120j
Abstract
Tb for Ca substituted hydroxyapatite ceramic samples with composition Ca 10−x Tb x (PO 4 ) 6 (OH 1−x/2−δ ) 2 , where x = 0.1, 0.5, were synthesized by solid-state reaction at 1300 °C in air, and their crystal structure, vibrational spectra, luminescence, and magnetic properties were studied. Implanting Tb 3+ into the calcium apatite crystal lattice results in formation of an effective TbO + ion which displays a short terbium-oxygen bond of 2.15 Å and a stretching vibration at 534 cm −1 . The Tb 3+ electronic structure has been revealed by analyzing the luminescence spectra and dc/ac magnetization data. Accordingly, the ground state represents a pseudo doublet with M J = ±6 and the first exited level is by 112 cm −1 higher in energy. The ion exhibits field induced magnetic bistability with the magnetization reversing over the first exited state. Three paths of magnetization relaxation with field-temperature controlled switching between the paths have been identified.
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How to cite
APA:
Kazin, P.E., Zykin, M.A., Magdysyuk, O.V., Utochnikova, V.V., Gorbachev, E.A., Kremer, R.K.,... Jansen, M. (2019). TbO+in a calcium apatite matrix featuring a triple trigger-type relaxation of magnetization. Dalton Transactions, 48(16), 5299-5307. https://doi.org/10.1039/c9dt01120j
MLA:
Kazin, Pavel E., et al. "TbO+in a calcium apatite matrix featuring a triple trigger-type relaxation of magnetization." Dalton Transactions 48.16 (2019): 5299-5307.
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