HoFe - Garnet soft XMCD measurements below and above the compensation temperature

E. Goering; S. Gold; G. Schütz

doi:10.1107/S0909049500018355

HoFe - Garnet soft XMCD measurements below and above the compensation temperature

E. Goering, S. Gold, G. Schütz

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

We have investigated the magnetism of Holmium-Iron-Garnet (Ho₃Fe₅O₁₂) at the Ho M_4,5- the Fe L_2,3 - and the O K - edges. As expected switching of the sub-lattice magnetization is observed at the compensation temperature. We will give detailed analysis of the Ho and Fe XMCD signals, using sum rules. Fe dichroism is analyzed in terms of 3d ground state moments and compared to Gadolinium-Iron-Garnet (Gd₃Fe₅O₁₂). Contributions of octahedral and tetrahedral Fe sites could be separated and analyzed quantitatively. At the oxygen K edge two different structures are observable. Those structures show different temperature dependencies. Therefore we address these features separately to Fe and Rare Earth contributions.

Original language	English
Pages (from-to)	422-424
Number of pages	3
Journal	Journal of Synchrotron Radiation
Volume	8
Issue number	2
DOIs	https://doi.org/10.1107/S0909049500018355
State	Published - 1 Mar 2001
Externally published	Yes

Keywords

Circular dichroism
Ferrimagnetism
Iron garnets
Oxides
Rare earth
Sum rules
Transition metals
X-ray magnetic

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10.1107/S0909049500018355

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title = "HoFe - Garnet soft XMCD measurements below and above the compensation temperature",

abstract = "We have investigated the magnetism of Holmium-Iron-Garnet (Ho3Fe5O12) at the Ho M4,5- the Fe L2,3 - and the O K - edges. As expected switching of the sub-lattice magnetization is observed at the compensation temperature. We will give detailed analysis of the Ho and Fe XMCD signals, using sum rules. Fe dichroism is analyzed in terms of 3d ground state moments and compared to Gadolinium-Iron-Garnet (Gd3Fe5O12). Contributions of octahedral and tetrahedral Fe sites could be separated and analyzed quantitatively. At the oxygen K edge two different structures are observable. Those structures show different temperature dependencies. Therefore we address these features separately to Fe and Rare Earth contributions.",

keywords = "Circular dichroism, Ferrimagnetism, Iron garnets, Oxides, Rare earth, Sum rules, Transition metals, X-ray magnetic",

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T1 - HoFe - Garnet soft XMCD measurements below and above the compensation temperature

AU - Goering, E.

AU - Gold, S.

AU - Schütz, G.

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N2 - We have investigated the magnetism of Holmium-Iron-Garnet (Ho3Fe5O12) at the Ho M4,5- the Fe L2,3 - and the O K - edges. As expected switching of the sub-lattice magnetization is observed at the compensation temperature. We will give detailed analysis of the Ho and Fe XMCD signals, using sum rules. Fe dichroism is analyzed in terms of 3d ground state moments and compared to Gadolinium-Iron-Garnet (Gd3Fe5O12). Contributions of octahedral and tetrahedral Fe sites could be separated and analyzed quantitatively. At the oxygen K edge two different structures are observable. Those structures show different temperature dependencies. Therefore we address these features separately to Fe and Rare Earth contributions.

AB - We have investigated the magnetism of Holmium-Iron-Garnet (Ho3Fe5O12) at the Ho M4,5- the Fe L2,3 - and the O K - edges. As expected switching of the sub-lattice magnetization is observed at the compensation temperature. We will give detailed analysis of the Ho and Fe XMCD signals, using sum rules. Fe dichroism is analyzed in terms of 3d ground state moments and compared to Gadolinium-Iron-Garnet (Gd3Fe5O12). Contributions of octahedral and tetrahedral Fe sites could be separated and analyzed quantitatively. At the oxygen K edge two different structures are observable. Those structures show different temperature dependencies. Therefore we address these features separately to Fe and Rare Earth contributions.

KW - Circular dichroism

KW - Ferrimagnetism

KW - Iron garnets

KW - Oxides

KW - Rare earth

KW - Sum rules

KW - Transition metals

KW - X-ray magnetic

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JO - Journal of Synchrotron Radiation

JF - Journal of Synchrotron Radiation

IS - 2

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HoFe - Garnet soft XMCD measurements below and above the compensation temperature

Abstract

Keywords

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