Search for spin canting in gadolinium iron garnet using the Mössbauer technique

Seidel, Agneta; Häggström, Lennart; Rodić, D.

doi:10.1007/bf02418601

Cited by 11 publications

(4 citation statements)

References 14 publications

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“…The data is analyzed with NORMOS software considering the simplest model i.e., two sites of Fe 3+ at d-, a-sites as the main objective of the work is to show the usefulness of H eff estimation in visualizing the sub-lattice spin reversal across magnetic compensation. The observed hyperfine parameters, as mentioned in Table 2 match with literature [21,22]. One can observe the following from the in-field M össbauer data.…”

Section: Resultssupporting

confidence: 85%

In-field 57Fe M$\ddot {o}$ssbauer spectroscopy study of polycrystalline rare-earth iron garnet (R3Fe5O12; R=Y, Gd, Ho, Tm, & Yb) compounds

Kuila

Reddy

2021

Hyperfine Interact

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The present work reports the in-field 57 F e M össbauer spectroscopy measurements on polycrystalline R 3 Fe 5 O 12 (RIG, R=Y, Gd, Ho, Tm, & Yb) rare-earth iron garnets. The contrast between the effective hyperfine field (H eff ) values of two Fe 3+ sites (tetrahedral, d-and octahedral, a-sites) across magnetic compensation (T Comp ) facilitates to probe the Fe 3+ sublattice spin reversal in RIG systems (R=Gd, Ho and Yb) exhibiting magnetic compensation. Further, the analysis of relative intensity of absorption lines in a sextet from the field dependent 57 F e M össbauer spectroscopy measurements carried out in polycrystalline YbIG, below T Comp , show the clear signatures of field induced perpendicular Fe 3+ spin configuration when applied external field is 50 kOe.

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Section: Resultssupporting

confidence: 85%

In-field 57Fe M$\ddot {o}$ssbauer spectroscopy study of polycrystalline rare-earth iron garnet (R3Fe5O12; R=Y, Gd, Ho, Tm, & Yb) compounds

Kuila

Reddy

2021

Hyperfine Interact

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“…One can clearly see two components corresponding to two Fe 3+ sublattices located at d-and a-sites. The obtained hyperfine parameters as shown in table-II of supplementary information match with literature values for garnet [32,41,42]. From the obtained hyperfine parameters, the area fraction of Fe 3+ at the dand a-sites is found to remain the same at all the temperatures.…”

Section: Fe Mössbauer Spectroscopy Resultssupporting

confidence: 81%

“…However, there seems to be no systematic in-field Mössbauer study across T Comp in RIG systems in literature. Most of the Mössbauer literature focused on the estimation of cation distribution in RIG systems, except the work of Stadnik et al, and Seidel et al [30,31]. Seidel et al, reported that there is no spin-canting in Gd 3 Fe 5 O 12 across T Comp with zerofield Mössbauer measurements [30] and Stadnik et al, reported canting of the Fe 3+ spins in Sc doped Eu 3 Fe 5 O 12 with in-field Mössbauer measurements [31].…”

Section: Introductionmentioning

confidence: 99%

Sublattice spin reversal and field induced Fe³⁺ spin-canting across the magnetic compensation temperature in Y_1.5Gd_1.5Fe₅O₁₂ rare-earth iron garnet

Kuila¹,

Mardegan²,

Tayal³

et al. 2023

J. Phys.: Condens. Matter

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In the present work Fe\textsuperscript{3+} sublattice spin reversal and Fe\textsuperscript{3+} spin-canting across the magnetic compensation temperature (T\textsubscript{Comp}) are demonstrated in polycrystalline Y\textsubscript{1.5}Gd\textsubscript{1.5}Fe\textsubscript{5}O\textsubscript{12} (YGdIG) by means of in-field $^{57}Fe$ M$\ddot{o}$ssbauer spectroscopy measurements. Corroborating in-field $^{57}Fe$ M$\ddot{o}$ssbauer measurements, both Fe\textsuperscript{3+} \& Gd\textsuperscript{3+} sublattice spin reversal has also been manifested in hard x-ray magnetic circular dichroism (XMCD) measurements. From in-field $^{57}Fe$ M$\ddot{o}$ssbauer measurements, estimation and analysis of effective internal hyperfine field (H\textsubscript{eff}), relative intensity of absorption lines in a sextet elucidated unambiguously the signatures of Fe\textsuperscript{3+} spin reversal and field induced spin-canting of Fe\textsuperscript{3+} sublattices across T\textsubscript{Comp}. Gd L\textsubscript{3}-edge XMCD signal is observed to consist of an additional spectral feature, identified as Fe\textsuperscript{3+} magnetic contribution to XMCD spectra of Gd L\textsubscript{3}-edge, enabling us the extraction of both the sublattices (Fe\textsuperscript{3+} \& Gd\textsuperscript{3+}) information from a single absorption edge analysis. The evolution of the XMCD amplitudes, which is proportional to magnetic moments, as a function of temperature for both magnetic sublattices extracted at the Gd L\textsubscript{3}-edge reasonably match with values that are extracted from bulk magnetization data of YGdIG and YIG (Y\textsubscript{3}Fe\textsubscript{5}O\textsubscript{12}) and corresponding Fe K-edge XMCD amplitudes for Fe contribution. These measurements pave new avenues to investigate how the magnetic behavior of such complex system acts across the compensation point.

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“…3 shows the temperature dependent 57 F e Mössbauer spectra of YGdIG measured across T Comp . One can clearly see two components corresponding to Fe 3+ sublattices located at d-and a-sites and the obtained hyperfine parameters match with literature values of garnet [36][37][38]. Values of H int , area fraction and A 23 are shown in Table-1.…”

Section: Figuresupporting

confidence: 81%

Sublattice spin reversal and field induced $Fe^{3+}$ spin-canting across the magnetic compensation temperature in $Y_{1.5}Gd_{1.5}Fe_{5}O_{12}$ rare-earth iron garnet

Kuila¹,

Mardegan²,

Tayal³

et al. 2021

Preprint

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In the present work Fe 3+ & Gd 3+ sublattice spin reversal and Fe 3+ spin-canting across the magnetic compensation temperature (TComp) are demonstrated in polycrystalline Y1.5Gd1.5Fe5O12 (YGdIG) with in-field 57 F e Mössbauer spectroscopy and hard x-ray magnetic circular dichroism (XMCD) measurements. From in-field 57 F e Mössbauer measurements, estimation and analysis of effective internal hyperfine field (H eff ), relative intensity of absorption lines in a sextet elucidated unambiguously the signatures of Fe 3+ spin reversal, their continuous transition and field induced spin-canting of Fe 3+ sublattices across TComp. Further, Fe K-(Gd L3-) edge XMCD data is observed to consist the spectral features from Gd 3+ (Fe 3+ ) magnetic ordering enabling the extraction of both the sublattice (Fe 3+ & Gd 3+ ) information from a single edge XMCD analysis. The observed magnetic moment variation of both the sublattices extracted from either Fe K-or Gd L3-edge XMCD data is observed to follow the trend of bulk magnetization.

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Search for spin canting in gadolinium iron garnet using the Mössbauer technique

Cited by 11 publications

References 14 publications

In-field 57Fe M$\ddot {o}$ssbauer spectroscopy study of polycrystalline rare-earth iron garnet (R3Fe5O12; R=Y, Gd, Ho, Tm, & Yb) compounds

In-field 57Fe M$\ddot {o}$ssbauer spectroscopy study of polycrystalline rare-earth iron garnet (R3Fe5O12; R=Y, Gd, Ho, Tm, & Yb) compounds

Sublattice spin reversal and field induced Fe³⁺ spin-canting across the magnetic compensation temperature in Y_1.5Gd_1.5Fe₅O₁₂ rare-earth iron garnet

Sublattice spin reversal and field induced $Fe^{3+}$ spin-canting across the magnetic compensation temperature in $Y_{1.5}Gd_{1.5}Fe_{5}O_{12}$ rare-earth iron garnet

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Search for spin canting in gadolinium iron garnet using the Mössbauer technique

Cited by 11 publications

References 14 publications

In-field 57Fe M$\ddot {o}$ssbauer spectroscopy study of polycrystalline rare-earth iron garnet (R3Fe5O12; R=Y, Gd, Ho, Tm, & Yb) compounds

In-field 57Fe M$\ddot {o}$ssbauer spectroscopy study of polycrystalline rare-earth iron garnet (R3Fe5O12; R=Y, Gd, Ho, Tm, & Yb) compounds

Sublattice spin reversal and field induced Fe3+ spin-canting across the magnetic compensation temperature in Y1.5Gd1.5Fe5O12 rare-earth iron garnet

Sublattice spin reversal and field induced $Fe^{3+}$ spin-canting across the magnetic compensation temperature in $Y_{1.5}Gd_{1.5}Fe_{5}O_{12}$ rare-earth iron garnet

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Sublattice spin reversal and field induced Fe³⁺ spin-canting across the magnetic compensation temperature in Y_1.5Gd_1.5Fe₅O₁₂ rare-earth iron garnet