منابع مشابه
Are light alkali metals still metals under high pressure ?
The extended Hubbard Hamiltonian on a bcc lattice is studied at half-filling and for a finite hopping between next-nearest-neighbours, in mean-field approximation. An ionic insulating broken-symmetry phase is predicted for any hydrogenoid bcc solid in the density range 1.0 < r s < 2.6. The occurrence of an ionic phase would explain the failure to achieve hydrogen metallization at high pressures...
متن کاملElectronic structure and magnetic state of transuranium metals under pressure.
The electronic structures of bcc Np, fcc Pu, Am, and Cm pure metals under pressure have been investigated employing the LDA + U method with spin-orbit coupling (LDA + U + SO). The magnetic state of the actinide ions was analyzed in both LS and jj coupling schemes to reveal the applicability of corresponding coupling bases. It was demonstrated that whereas Pu and Am are well described within the...
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there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...
The Solubility of Hydrogen in the Platinum Metals under High Pressure
The technique for compressing macroscopic volumes 0.f hydrogen to record pressures of tens of kilobars, developed in the Institute of Solid State Physics of the USSR Academy of Sciences, has permitted the ,first syntheses of the hydrides o,f a number of metals namely: manganese, iron, cobalt, molybdenum, technetium, rhenium and gold. This paper presents the results of the application of the tec...
متن کاملHigh-pressure phases of the alkali metals
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: Proceedings of the National Academy of Sciences
سال: 1917
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.3.1.10