Structure of eutectic liquids in the Au-Si, Au-Ge, and Ag-Ge binary systems by neutron diffraction

Chirawatkul, Prae; Zeidler, Anita; Salmon, Philip S.; Takeda, Shin‐ichi; Kawakita, Yukinobu; Usuki, Takeshi; Fischer, Henry E.

doi:10.1103/physrevb.83.014203

Cited by 44 publications

(49 citation statements)

References 66 publications

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“…5 describes both ionic and covalent network glasses (GeO 2 and ZnCl 2 ), remarking that the long-range decay was independent of the nature of the local bonding 37 . Furthermore, the same asymptotic behavior is seen for systems as diverse as binary metallic liquids 39 and liquid noble gases such as Ar 40 , all of which have non-directional interaction potentials.…”

Section: -(4)mentioning

confidence: 66%

Local structural motifs and extended-range order in liquid and solid ammonia under pressure

et al. 2012

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Section: -(4)mentioning

confidence: 66%

Local structural motifs and extended-range order in liquid and solid ammonia under pressure

et al. 2012

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“…Therefore, it is one of the most important tools for structural characterization of amorphous materials. The RDF can be determined from X-ray and neutron diffraction data [1][2] and has been widely applied to investigate amorphous materials such as organic solids [3], liquids [4] [5], metallic glasses [6], phase-change memory materials [7] and nanoscaled energy storage materials [8] [9]. Jacques et al combined RDF analysis with X-ray diffraction computed tomography (XRD-CT) [10] for spatially resolved RDF analysis of heterogeneous structures, where structural features around tens of micrometers could be resolved [11].…”

Section: Introductionmentioning

confidence: 99%

Radial distribution function imaging by STEM diffraction: Phase mapping and analysis of heterogeneous nanostructured glasses

Wang

Feng

et al. 2016

Ultramicroscopy

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To overcome some of the challenges in characterizing heterogeneous nanostructured amorphous materials, we developed a new TEM method, RDF imaging, combining scanning transmission electron microscopy diffraction mapping with radial distribution function (RDF) analysis followed by hyperspectral analysis, to enable phase analysis and mapping of heterogeneous amorphous structures purely based on their short-and medium range atomic order. We applied this method to an amorphous zirconium oxide and zirconium iron multilayer system, demonstrating an extreme sensitivity of the method to small atomic packing variations. This approach has great potential to understand local structure variations in glassy composite materials and to provide new insights to correlate structure and properties of glasses.

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“…These explanations are appealing since they naturally refer to a fractal medium-range glass order, such as percolating icosahedral structures, for metallic glasses, and therefore explain how glass order extends in space. However, the interpretation of the existence of the non-cubic law based on the fractal picture is not without controversy [17], and sometimes one also find deviations from the non-cubic law [18,19].…”

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confidence: 99%

Origin of Noncubic Scaling Law in Disordered Granular Packing

Xia

Kou

et al. 2017

Phys. Rev. Lett.

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Recent diffraction experiments on metallic glasses have unveiled an unexpected non-cubic scaling law between density and average interatomic distance, which lead to the speculations on the presence of fractal glass order. Using X-ray tomography we identify here a similar non-cubic scaling law in disordered granular packing of spherical particles. We find that the scaling law is directly related to the contact neighbors within first nearest neighbor shell, and therefore is closely connected to the phenomenon of jamming. The seemingly universal scaling exponent around 2.5 arises due to the isostatic condition with contact number around 6, and we argue that the exponent should not be universal.PACS number: 45.70. -n, 81.05.Kf, 87.59. -e The origin of dynamic arrest and mechanical rigidity in amorphous materials remains one of the important unresolved questions in condensed matter physics [1][2][3]. Whether it has a structural origin or is just a dynamic phenomenon remains controversial [4,5]. For metallic glasses, it has long been speculated that dense local packing structures of short-range order serve as the building blocks in these systems [6].However, how these local structures can be extended to medium or large scales remains at present a mystery due to the existence of geometric frustration or intrinsic chemical disorder [7][8][9]. Recently, it has been proposed that metallic glasses possess a medium range fractal order, which could rationalize the

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Structure of eutectic liquids in the Au-Si, Au-Ge, and Ag-Ge binary systems by neutron diffraction

Cited by 44 publications

References 66 publications

Local structural motifs and extended-range order in liquid and solid ammonia under pressure

Local structural motifs and extended-range order in liquid and solid ammonia under pressure

Radial distribution function imaging by STEM diffraction: Phase mapping and analysis of heterogeneous nanostructured glasses

Origin of Noncubic Scaling Law in Disordered Granular Packing

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