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Mössbauer study of iron-doped lithium niobate

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Abstract

From Mössbauer spectra of LiNbO3∶57Fe(III) single crystals under external fields of 4.92 and 6.2 T, the crystal field and hyperfine parameters are determined. Transmission integral fits indicate a Boltzmann population of the Fe(III) electronic levels with a spin temperature equal to the sample temperature. Spectra at external fields of 0 T and 19 mT can be satisfactorily simulated using an effective spin 1/2,g-factors calculated from spin-expectation values and an internal averaged dipole field of 5.5 mT inclined 20‡ to thec-axis. The simulations indicate cross-relaxation between Nb and Li nuclear spins and the Fe(III) electronic spin.

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Author notes

  1. R. MagalhÃes-Paniago

    Present address: Physics Department, University of Houston, 77204-5504, Houston, TX, USA

Authors and Affiliations

  1. Departamento de Fisica, Universidade Federal de Minas Gerais, C.P. 702, 30161-970, Belo Horizonte, Brazil

    H. -D. Pfannes & R. MagalhÃes-Paniago

  2. Institut für Physik, Medizinische Universität zu Lübeck, 23538, Lübeck, Germany

    E. Bill & A. X. Trautwein

Authors
  1. H. -D. Pfannes
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  2. R. MagalhÃes-Paniago
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  3. E. Bill
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  4. A. X. Trautwein
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Pfannes, H.D., MagalhÃes-Paniago, R., Bill, E. et al. Mössbauer study of iron-doped lithium niobate. Hyperfine Interact 94, 2005–2010 (1994). https://doi.org/10.1007/BF02063731

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