The Simulation and Interpretation of the EPR Powder Spectra of Gd3+-Doped LaAlO3

H.J.A. Koopmans, M.M.A. Perik, B. Nieuwenhuijse, P.J. Gellings

Research output: Contribution to journalArticleAcademic

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Abstract

The EPR powder spectra of Gd3+ doped LaAlO3 are simulated for a number of temperatures between 4 and 800 K by means of the usual spin-Hamiltonian. Values are found for the zero field splitting parameters B(n, 0) only, which agree with single crystal measurements. For an accurate simulation of the axial powder spectra a variable linewidth has to be introduced, because an inhomogeneous broadening of the resonances in the xy plane is observed. This broadening is successfully described by a variable B(2, 2) parameter. This indicates that the Gd3+ ion does not fit within the LaAlO3 lattice, because GdAlO3 is not isostructural with LaAlO3. Crystal field calculations support this assumption.
Original languageUndefined
Pages (from-to)317-330
JournalPhysica status solidi B
Volume122
Issue number1
DOIs
Publication statusPublished - 1984

Keywords

  • IR-70715

Cite this

Koopmans, H. J. A., Perik, M. M. A., Nieuwenhuijse, B., & Gellings, P. J. (1984). The Simulation and Interpretation of the EPR Powder Spectra of Gd3+-Doped LaAlO3. Physica status solidi B, 122(1), 317-330. https://doi.org/10.1002/pssb.2221220137
Koopmans, H.J.A. ; Perik, M.M.A. ; Nieuwenhuijse, B. ; Gellings, P.J. / The Simulation and Interpretation of the EPR Powder Spectra of Gd3+-Doped LaAlO3. In: Physica status solidi B. 1984 ; Vol. 122, No. 1. pp. 317-330.
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abstract = "The EPR powder spectra of Gd3+ doped LaAlO3 are simulated for a number of temperatures between 4 and 800 K by means of the usual spin-Hamiltonian. Values are found for the zero field splitting parameters B(n, 0) only, which agree with single crystal measurements. For an accurate simulation of the axial powder spectra a variable linewidth has to be introduced, because an inhomogeneous broadening of the resonances in the xy plane is observed. This broadening is successfully described by a variable B(2, 2) parameter. This indicates that the Gd3+ ion does not fit within the LaAlO3 lattice, because GdAlO3 is not isostructural with LaAlO3. Crystal field calculations support this assumption.",
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Koopmans, HJA, Perik, MMA, Nieuwenhuijse, B & Gellings, PJ 1984, 'The Simulation and Interpretation of the EPR Powder Spectra of Gd3+-Doped LaAlO3' Physica status solidi B, vol. 122, no. 1, pp. 317-330. https://doi.org/10.1002/pssb.2221220137

The Simulation and Interpretation of the EPR Powder Spectra of Gd3+-Doped LaAlO3. / Koopmans, H.J.A.; Perik, M.M.A.; Nieuwenhuijse, B.; Gellings, P.J.

In: Physica status solidi B, Vol. 122, No. 1, 1984, p. 317-330.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - The Simulation and Interpretation of the EPR Powder Spectra of Gd3+-Doped LaAlO3

AU - Koopmans, H.J.A.

AU - Perik, M.M.A.

AU - Nieuwenhuijse, B.

AU - Gellings, P.J.

PY - 1984

Y1 - 1984

N2 - The EPR powder spectra of Gd3+ doped LaAlO3 are simulated for a number of temperatures between 4 and 800 K by means of the usual spin-Hamiltonian. Values are found for the zero field splitting parameters B(n, 0) only, which agree with single crystal measurements. For an accurate simulation of the axial powder spectra a variable linewidth has to be introduced, because an inhomogeneous broadening of the resonances in the xy plane is observed. This broadening is successfully described by a variable B(2, 2) parameter. This indicates that the Gd3+ ion does not fit within the LaAlO3 lattice, because GdAlO3 is not isostructural with LaAlO3. Crystal field calculations support this assumption.

AB - The EPR powder spectra of Gd3+ doped LaAlO3 are simulated for a number of temperatures between 4 and 800 K by means of the usual spin-Hamiltonian. Values are found for the zero field splitting parameters B(n, 0) only, which agree with single crystal measurements. For an accurate simulation of the axial powder spectra a variable linewidth has to be introduced, because an inhomogeneous broadening of the resonances in the xy plane is observed. This broadening is successfully described by a variable B(2, 2) parameter. This indicates that the Gd3+ ion does not fit within the LaAlO3 lattice, because GdAlO3 is not isostructural with LaAlO3. Crystal field calculations support this assumption.

KW - IR-70715

U2 - 10.1002/pssb.2221220137

DO - 10.1002/pssb.2221220137

M3 - Article

VL - 122

SP - 317

EP - 330

JO - Physica status solidi B

JF - Physica status solidi B

SN - 0370-1972

IS - 1

ER -