In-Plane Positional Fluctuations of Zinc Atoms in Single Crystal Mg&lt;sub&gt;85&lt;/sub&gt;Zn&lt;sub&gt;6&lt;/sub&gt;Y&lt;sub&gt;9&lt;/sub&gt; Alloy Studied by X-ray Fluorescence Holography

Kawasaki, Koji; Hayashi, Kouichi; Hagihara, Koji; Izuno, Hitoshi; Happo, Naohisa; Hosokawa, Shinya; Suzuki, Motohiro; Tajiri, Hiroo

doi:10.2320/matertrans.m2016459

Cited by 18 publications

(13 citation statements)

References 22 publications

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“…In contrast, XFH is a very flexible method. XFH in general has been used successfully to study both dopants Kimura et al, 2017;Hu et al, 2015;Hosokawa et al, 2013) and bulk systems (Wakabayashi et al, 2016;Hosokawa et al, 2015), and recently also for protein crystals (Sato-Tomita et al, 2016). The particular resonant approach presented in this paper can be applied to any system with mixed valence states and an accessible absorption edge.…”

Section: Comparative Assessmentmentioning

confidence: 99%

A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film

et al. 2017

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The first direct valence‐selective structure determination by X‐ray fluorescence holography is reported. The method is applied to investigate an epitaxial thin film of the rare earth monoxide YO, which has recently been synthesized by pulsed laser deposition. The surface of the sample is easily oxidized to Y2O3. In order to separate the structural information connected with the two different valence states of Y, the X‐ray fluorescence holography measurements were performed close to the Y K absorption edge. Using the shift of the absorption edge for the different valence states, very different relative contributions of YO and Y2O3 are obtained. Thus, it is possible to distinguish the crystal structures of YO and Y2O3 in the thin‐film sample.

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Section: Comparative Assessmentmentioning

confidence: 99%

A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film

et al. 2017

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“…Moreover, the results obtained were very significant because they facilitated a feasible interpretation of the electronic structure obtained from the transport properties . In addition, X-ray fluorescence holography (XFH), as well as neutron diffraction fluorescence holography, is a very useful technique for determining the local structure at the atomic level, − positional fluctuations of atoms, − and ionic displacements of dielectric materials. − …”

Section: Introductionmentioning

confidence: 99%

Elucidation of the Local Structure of the Topological Insulator β-PdBi₂ by X-ray Fluorescence Holography

et al. 2022

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The local structures around the Bi and Pd atoms in β-PdBi 2 were determined from Bi Lα and Pd Kα X-ray fluorescence holography (XFH) images measured with synchrotron radiation at room temperature, demonstrating clear atomically resolved images along the c-axis (z-axis). More precisely, the location of atoms in the atomic layer at z = 0 Å was unambiguously determined from each hologram; that is, the location of Bi atoms at z = 0 Å was determined from Bi Lα XFH, whereas the location of Pd atoms at z = 0 Å was unambiguously determined from Pd Kα XFH. Moreover, the Bi atoms in the atomic plane at z = 3.6 Å were clearly reconstructed from Bi Lα XFH with Barton's algorithm. However, clear atomic images of the planes at z = 1.8 Å and z = 2.9 Å were not obtained from the Bi Lα holograms, nor were they observed at z = 1.8 Å in the case of the Pd Kα holograms; some weak atomic images of Bi at z = 4.7 Å were observed from Pd Kα holograms. Thus, two different patterns can be distinguished for the atomic images in the plane at z ≠ 0 Å: a clear atomic image and an ambiguous atomic image, owing to the order or disorder between the atomic layers. The small fluctuation or the small disorder between the atomic layers formed through the attractive interaction of Bi − −Pd 2+ −Bi − provides clear atomic images, whereas the atomic layers formed via weak van der Waals interactions lead to ambiguous atomic images. Thus, the atomic images of β-PdBi 2 obtained by XFH clearly reproduce not only the crystal structure determined by single-crystal X-ray diffraction but also provide information on thermal fluctuation and static disorder between the atomic layers.

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“…10) Furthermore, detailed information on the atomic shifts in a Si 1¹x Ge x single crystal 11) and about the in-plane disordering of ZnY clusters in a novel Zn,Y doped Mg alloy were obtained. 12) For aperiodic systems, however, a new complication arises, which is related to the missing translational invariance. XFH measures the average structure over all atoms (of the same element) in the case of a periodic crystal, this can justifiably be assumed to be the same for each target atom.…”

Section: Introductionmentioning

confidence: 99%

The Local Structure of the Fibonacci Chain and the Penrose Tiling from X-Ray Fluorescence Holography

et al. 2021

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Structural investigations based on X-ray fluorescence holography can add a new perspective to the research of aperiodic systems. This technique can reconstruct the average 3-dimensional (3-D) local structure around specific elements directly from the experimental data. However, these structures can be difficult to disentangle for the complex arrangements found in quasicrystals. Therefore, we illustrate this point of view by considering appropriate reference models with a 1-D model of a Fibonacci chain and a 2-D Penrose tiling. It is demonstrated that the holographic reconstructions correspond to a projection of the average structure. The results from X-ray fluorescence holography can then be interpreted as statistical information on inter-atomic connections in the system.

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In-Plane Positional Fluctuations of Zinc Atoms in Single Crystal Mg<sub>85</sub>Zn<sub>6</sub>Y<sub>9</sub> Alloy Studied by X-ray Fluorescence Holography

Cited by 18 publications

References 22 publications

A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film

A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film

Elucidation of the Local Structure of the Topological Insulator β-PdBi₂ by X-ray Fluorescence Holography

The Local Structure of the Fibonacci Chain and the Penrose Tiling from X-Ray Fluorescence Holography

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In-Plane Positional Fluctuations of Zinc Atoms in Single Crystal Mg<sub>85</sub>Zn<sub>6</sub>Y<sub>9</sub> Alloy Studied by X-ray Fluorescence Holography

Cited by 18 publications

References 22 publications

A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film

A valence-selective X-ray fluorescence holography study of an yttrium oxide thin film

Elucidation of the Local Structure of the Topological Insulator β-PdBi2 by X-ray Fluorescence Holography

The Local Structure of the Fibonacci Chain and the Penrose Tiling from X-Ray Fluorescence Holography

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Elucidation of the Local Structure of the Topological Insulator β-PdBi₂ by X-ray Fluorescence Holography