Mössbauer study of iron-doped lithium niobate

H. D. Pfannes; R. MagalhÃes-Paniago; E. Bill; A. X. Trautwein

doi:10.1007/BF02063731

Mössbauer study of iron-doped lithium niobate

H. D. Pfannes^*, R. MagalhÃes-Paniago, E. Bill, A. X. Trautwein

^*Corresponding author for this work

Institute of Physics

Universidade Federal de Minas Gerais

1 Citation (Scopus)

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 the c-axis. The simulations indicate cross-relaxation between Nb and Li nuclear spins and the Fe(III) electronic spin.

Original language	English
Journal	Hyperfine Interactions
Volume	94
Issue number	1
Pages (from-to)	2005-2010
Number of pages	6
ISSN	0304-3834
DOIs	https://doi.org/10.1007/BF02063731
Publication status	Published - 01.12.1994

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abstract = "From M{\"o}ssbauer 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 the c-axis. The simulations indicate cross-relaxation between Nb and Li nuclear spins and the Fe(III) electronic spin.",

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T1 - Mössbauer study of iron-doped lithium niobate

AU - Pfannes, H. D.

AU - MagalhÃes-Paniago, R.

AU - Bill, E.

AU - Trautwein, A. X.

PY - 1994/12/1

Y1 - 1994/12/1

N2 - 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 the c-axis. The simulations indicate cross-relaxation between Nb and Li nuclear spins and the Fe(III) electronic spin.

AB - 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 the c-axis. The simulations indicate cross-relaxation between Nb and Li nuclear spins and the Fe(III) electronic spin.

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U2 - 10.1007/BF02063731

DO - 10.1007/BF02063731

M3 - Journal articles

AN - SCOPUS:5844229170

SN - 0304-3834

VL - 94

SP - 2005

EP - 2010

JO - Hyperfine Interactions

JF - Hyperfine Interactions

IS - 1

ER -

Mössbauer study of iron-doped lithium niobate

Abstract

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