On the formation of structure and electronic transport

Häußler, P.; Barzola‐Quiquia, J.; Stiehler, M.; Rauchhaupt, J.; Giegengack, U.; Hauschild, Dirk; Neubert, S.

doi:10.1016/j.jpcs.2007.03.009

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…Interestingly, a similar correlation suitable for bulk metallic glasses (BMGs) has been reported upon the cluster resonance model, ,− based on the Fermi sphere–Brillouin zone interactions. − It has been found that the k value of 0.5875 in that correlation for BMGs is within our discussed range. This particular case illustrates the applicability of the correlation deduced in our work.…”

supporting

confidence: 83%

Electrochemical Potential Derived from Atomic Cluster Structures

Xiao

Wen

et al. 2016

J. Phys. Chem. Lett.

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Based on the atomic cluster structures and free electron approximation model, it is revealed that the electrochemical potential (ECP) for the system of interest is proportional to the reciprocal of atomic cluster radius squared, i.e., φ = k·(1/r(2)). Applied to elemental crystals, the correlation between atomic cluster radii and the ECP that we have predicted agrees well with the previously reported results. In addition, some other physicochemical properties associated with the ECP have also been found relevant to the atomic cluster radii of materials. Thus, the atomic cluster radii can be perceived as an effective characteristic parameter to measure the ECP and related properties of materials. Our results provide a better understanding of ECP directly from the atomic structures perspective.

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supporting

confidence: 83%

Electrochemical Potential Derived from Atomic Cluster Structures

Xiao

Wen

et al. 2016

J. Phys. Chem. Lett.

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“…Their Jones zone is ill defined, due to the broad main halo they exhibit in the diffraction pattern and due to the pre-peak, when it exists, that does not fall that close to the origin of reciprocal space. Their physics however is often very much reminiscent of that of CMAs [5].…”

Section: Complexity In Reciprocal and Real Spacementioning

confidence: 99%

Those Properties of CMAs We Know Something About

Fournée

Barthés-Labrousse

Dubois

2008

SSP

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New tools are nowadays available to solve the crystallographic structure of complex compounds in metallic alloy systems and a vivid interest manifests itself to discover new compounds in multi-constituent alloys with hundreds or more atoms per unit cell. Meanwhile, it is observed that the metallic character of the alloy progressively disappears with increasing the number of atoms in the unit cell. This contribution focuses at a few examples of this atypical behavior of complex metallic alloys, including quasicrystals as the ultimate state of structural complexity in a crystal made of metals. Emphasis is put on surface properties.

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“…This leads to the occurrence of gaps (c-systems) or pseudogaps, i.e. local minima, (a-systems) bordered by maxima in the electronic density of states (DOS) [25,26]. If optimally F lies close to the centre of the (pseudo)gap, only the states shifted to lower energies are occupied and the energy of the whole system is decreased, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…In that situation an a-system is especially stable since the atoms are located in the minima of the effective pair potential [3,[38][39][40]. Alternatively, the SPO can be understood as the result of a selforganisation between the atoms and the valence electrons during structure formation to adjust the interatomic distances for an optimised pseudo-Bragg scattering in order to enhance the pseudogap [25,26]. It has to be noted that the SPO, in its current form, does not distinguish between the different species in an alloy and hence cannot explain the occurrence of the individual partial pair correlation functions.…”

Section: Introductionmentioning

confidence: 99%

On the impact of global interactions on the structure of metallic glasses

Stiehler

Jolly

Georgarakis

2019

Journal of Alloys and Compounds

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The influence of global interactions between the static atomic structure and the valence electrons on structure formation in binary Al-(Ni,Cu,Zr), Zr-(Ni,Cu) and ternary Al-(Ni,Cu)-Zr metallic glasses is investigated over wide concentration ranges and discussed in terms of a Hume-Rothery-like theory by analysing and comparing data available in the literature. The results suggest that global interactions lead to an improvement of thermal stability and glass-forming ability. A complete understanding of structure formation in the considered alloys is assumed to be possible only by taking into account both local and global effects.

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On the formation of structure and electronic transport

Cited by 6 publications

References 9 publications

Electrochemical Potential Derived from Atomic Cluster Structures

Electrochemical Potential Derived from Atomic Cluster Structures

Those Properties of CMAs We Know Something About

On the impact of global interactions on the structure of metallic glasses

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