Rare earth substitutions in M-type ferrites

R Grossinger; M Kupferling; JCT Blanco; G Wiesinger; M Muller; G Hilscher; MW Pieper; JF Wang; Ivor Harris

doi:10.1109/TMAG.2003.815745

Rare earth substitutions in M-type ferrites

R Grossinger, M Kupferling, JCT Blanco, G Wiesinger, M Muller, G Hilscher, MW Pieper, JF Wang, Ivor Harris

Metallurgy and Materials

Research output: Contribution to journal › Article

19 Citations (Scopus)

Abstract

In hexaferrites of the composition SrFe12O19 (SrM), Sir was substituted by R = La, Sm, and Nd. The precursors were weighed according to different Sm3+/Sr2+ ratios (n = Sm3+/Sr2+), where n was varied between 1/16 and 1/2. The samples were produced by hydrothermal synthesis. The effects of the rare earth substitution on the magnetic properties were investigated, measuring magnetization and magnetocrystalline anisotropy but also applying Mossbauer spectroscopy and nonmagnetic resonance. Nd and Sm substitution increases the intrinsic coercivity without causing any significant deterioration in either the saturation magnetization or the remanence, whereas La substitution has only a small effect on the intrinsic coercivity of SrM.

Original language	English
Pages (from-to)	2911-2913
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	39
Issue number	5
DOIs	https://doi.org/10.1109/TMAG.2003.815745
Publication status	Published - 1 Sept 2003

Keywords

Nd
hydrothermal synthesis
Sm
Sr hexaferrite
La substitution
magnetic properties

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10.1109/TMAG.2003.815745

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abstract = "In hexaferrites of the composition SrFe12O19 (SrM), Sir was substituted by R = La, Sm, and Nd. The precursors were weighed according to different Sm3+/Sr2+ ratios (n = Sm3+/Sr2+), where n was varied between 1/16 and 1/2. The samples were produced by hydrothermal synthesis. The effects of the rare earth substitution on the magnetic properties were investigated, measuring magnetization and magnetocrystalline anisotropy but also applying Mossbauer spectroscopy and nonmagnetic resonance. Nd and Sm substitution increases the intrinsic coercivity without causing any significant deterioration in either the saturation magnetization or the remanence, whereas La substitution has only a small effect on the intrinsic coercivity of SrM.",

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T1 - Rare earth substitutions in M-type ferrites

AU - Grossinger, R

AU - Kupferling, M

AU - Blanco, JCT

AU - Wiesinger, G

AU - Muller, M

AU - Hilscher, G

AU - Pieper, MW

AU - Wang, JF

AU - Harris, Ivor

PY - 2003/9/1

Y1 - 2003/9/1

N2 - In hexaferrites of the composition SrFe12O19 (SrM), Sir was substituted by R = La, Sm, and Nd. The precursors were weighed according to different Sm3+/Sr2+ ratios (n = Sm3+/Sr2+), where n was varied between 1/16 and 1/2. The samples were produced by hydrothermal synthesis. The effects of the rare earth substitution on the magnetic properties were investigated, measuring magnetization and magnetocrystalline anisotropy but also applying Mossbauer spectroscopy and nonmagnetic resonance. Nd and Sm substitution increases the intrinsic coercivity without causing any significant deterioration in either the saturation magnetization or the remanence, whereas La substitution has only a small effect on the intrinsic coercivity of SrM.

AB - In hexaferrites of the composition SrFe12O19 (SrM), Sir was substituted by R = La, Sm, and Nd. The precursors were weighed according to different Sm3+/Sr2+ ratios (n = Sm3+/Sr2+), where n was varied between 1/16 and 1/2. The samples were produced by hydrothermal synthesis. The effects of the rare earth substitution on the magnetic properties were investigated, measuring magnetization and magnetocrystalline anisotropy but also applying Mossbauer spectroscopy and nonmagnetic resonance. Nd and Sm substitution increases the intrinsic coercivity without causing any significant deterioration in either the saturation magnetization or the remanence, whereas La substitution has only a small effect on the intrinsic coercivity of SrM.

KW - Nd

KW - hydrothermal synthesis

KW - Sm

KW - Sr hexaferrite

KW - La substitution

KW - magnetic properties

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U2 - 10.1109/TMAG.2003.815745

DO - 10.1109/TMAG.2003.815745

M3 - Article

VL - 39

SP - 2911

EP - 2913

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5

ER -

Rare earth substitutions in M-type ferrites

Abstract

Keywords

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