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

Dalton Transactions Royal Society of Chemistry

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.

Involved external institutions

Lomonosov Moscow State University / Московский государственный университет имени М.В.Ломоносова RU Russian Federation (RU) Diamond Light Source GB United Kingdom (GB) Max-Planck-Institut für Festkörperforschung DE Germany (DE) Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

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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