Mössbauer Investigation of the Single Crystal and Powder Sample of Barium Nitroprusside Ba[Fe(CN)5NO]⋅3H2O (BNP)

Sv Stankov; V. Rusanov; V. Angelov; S. Haussühl; A. X. Trautwein

doi:10.1023/A:1021239027735

Mössbauer Investigation of the Single Crystal and Powder Sample of Barium Nitroprusside Ba[Fe(CN)₅NO]⋅3H₂O (BNP)

Sv Stankov^*, V. Rusanov, V. Angelov, S. Haussühl, A. X. Trautwein

^*Corresponding author for this work

Institute of Physics

5 Citations (Scopus)

Abstract

Angle-dependent Mössbauer investigation on single crystals of barium nitroprosside (BNP) using a-, b- and c-crystal cuts has been performed. The EFG tensor has been fully determined by the orientation between the main EFG component V_ZZ and the b-crystal axis (α=±6(2)°) and by the asymmetry parameter (η=0.04(2)). Mössbauer spectra of powder samples have been recorded at 293 K and at liquid helium temperature in an external magnetic field. In spite of the negligible Goldanskii-Karyagin effect observed in the powder sample a remarkable vibrational anisotropy was found in the crystal. The Lamb–Mössbauer factors along the main crystallographic directions are: f_LM^(a)=0.36(1); f_LM^(b)=0.23(1) and f_LM^(c)=0.50(1). The relative orientation of the main component of the MSD tensor with respect to the b-crystal axis is ω=±36(5)°.

Original language	English
Journal	Hyperfine Interactions
Volume	141-142
Issue number	1-4
Pages (from-to)	223-229
Number of pages	7
ISSN	0304-3843
DOIs	https://doi.org/10.1023/A:1021239027735
Publication status	Published - 28.06.2002

Funding

Sv. Stankov is very much indebted to the DAAD for the provided Research Fellow Grant. V. Rusanov gratefully acknowledges the support by the German Research Foundation (DFG) and the Alexander von Humboldt Foundation. We thank Dr. Ivan Mandjukov for the technical assistance with the macrophotography.

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Cite this

@article{e9b15051a1e24f76a322b958c0815543,

title = "M{\"o}ssbauer Investigation of the Single Crystal and Powder Sample of Barium Nitroprusside Ba[Fe(CN)5NO]⋅3H2O (BNP)",

abstract = "Angle-dependent M{\"o}ssbauer investigation on single crystals of barium nitroprosside (BNP) using a-, b- and c-crystal cuts has been performed. The EFG tensor has been fully determined by the orientation between the main EFG component VZZ and the b-crystal axis (α=±6(2)°) and by the asymmetry parameter (η=0.04(2)). M{\"o}ssbauer spectra of powder samples have been recorded at 293 K and at liquid helium temperature in an external magnetic field. In spite of the negligible Goldanskii-Karyagin effect observed in the powder sample a remarkable vibrational anisotropy was found in the crystal. The Lamb–M{\"o}ssbauer factors along the main crystallographic directions are: fLM(a)=0.36(1); fLM(b)=0.23(1) and fLM(c)=0.50(1). The relative orientation of the main component of the MSD tensor with respect to the b-crystal axis is ω=±36(5)°.",

author = "Sv Stankov and V. Rusanov and V. Angelov and S. Hauss{\"u}hl and Trautwein, \{A. X.\}",

year = "2002",

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T1 - Mössbauer Investigation of the Single Crystal and Powder Sample of Barium Nitroprusside Ba[Fe(CN)5NO]⋅3H2O (BNP)

AU - Stankov, Sv

AU - Rusanov, V.

AU - Angelov, V.

AU - Haussühl, S.

AU - Trautwein, A. X.

PY - 2002/6/28

Y1 - 2002/6/28

N2 - Angle-dependent Mössbauer investigation on single crystals of barium nitroprosside (BNP) using a-, b- and c-crystal cuts has been performed. The EFG tensor has been fully determined by the orientation between the main EFG component VZZ and the b-crystal axis (α=±6(2)°) and by the asymmetry parameter (η=0.04(2)). Mössbauer spectra of powder samples have been recorded at 293 K and at liquid helium temperature in an external magnetic field. In spite of the negligible Goldanskii-Karyagin effect observed in the powder sample a remarkable vibrational anisotropy was found in the crystal. The Lamb–Mössbauer factors along the main crystallographic directions are: fLM(a)=0.36(1); fLM(b)=0.23(1) and fLM(c)=0.50(1). The relative orientation of the main component of the MSD tensor with respect to the b-crystal axis is ω=±36(5)°.

AB - Angle-dependent Mössbauer investigation on single crystals of barium nitroprosside (BNP) using a-, b- and c-crystal cuts has been performed. The EFG tensor has been fully determined by the orientation between the main EFG component VZZ and the b-crystal axis (α=±6(2)°) and by the asymmetry parameter (η=0.04(2)). Mössbauer spectra of powder samples have been recorded at 293 K and at liquid helium temperature in an external magnetic field. In spite of the negligible Goldanskii-Karyagin effect observed in the powder sample a remarkable vibrational anisotropy was found in the crystal. The Lamb–Mössbauer factors along the main crystallographic directions are: fLM(a)=0.36(1); fLM(b)=0.23(1) and fLM(c)=0.50(1). The relative orientation of the main component of the MSD tensor with respect to the b-crystal axis is ω=±36(5)°.

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JO - Hyperfine Interactions

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