Simple metals at high pressure: the Fermi sphere – Brillouin zone concept
نویسندگان
چکیده
منابع مشابه
Brillouin scattering at high pressure: an overview
Brillouin scattering allows the determination of acoustic velocities and adiabatic elastic moduli in matter. These data are crucial in many areas of science, such as fundamental physics, geosciences and technology, especially when measured as a function of the density (pressure). In this paper, we present a review of the work performed on Brillouin scattering under high pressure in diamond anvi...
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We discuss the behaviour of Group 1 and 2 elements under pressure, describing crystallography based on diamond anvil pressure cell experiments and electronic structure calculations. In addition to these precise methods, we discuss more intuitive pictures of both the electronic driving force for the transitions, and the structural motifs which optimise the electronic energy by opening pseudogaps...
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Quasicrystals (QCs) are intermetallic alloys that have excellent long-range order but lack translational symmetry in at least one dimension. The valence band electronic structure near the Fermi energy EF in such materials is of special interest since it has a direct relation to their unusual physical properties. However, the Fermi surface (FS) topology as well as the mechanism of QC structure s...
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Diamond anvil cells (DAC) in radial synchrotron X-ray diffraction geometry were used to investigate texture development and identify deformation mechanisms in zinc and osmium at the Advanced Photon Source (APS) and the Advanced Light Source (ALS), respectively. Further experiments on cadmium and hafnium wires were carried out in the Deformation-DIA (D-DIA) multi-anvil press at APS to study the ...
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A series of recent x-ray diffraction experiments carried out by scientists from the Max-PlanckInstitut FKF in Stuttgart and the ESRF in Grenoble on elemental semiconductors and alkali metals under high pressure have provided new insight in pressure induced structural transformations. New structures have been identified, and some of these have surprising similarities, such as low coordination nu...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 2006
ISSN: 0108-7673
DOI: 10.1107/s010876730609489x