The use of high-pressure for the study and elaboration of homogeneous nanostructures is critically reviewed. Size effects, the interaction between nanostructures and guest species or the interaction of the nanosystem with the pressure transmitting medium are emphasized. Phase diagrams and the possibilities opened by the combination of pressure and temperature for the elaboration of new nanomate...

A study of the Mossbauer effect of Fe in magnetic materials subjected to high pressures is described. Specific systems reviewed are FeF2 , ct, s and -y phases of iron, invar, stainless steel and a metallic glass.

Microprobe analyses of Ca-rich pyroxenes crystallized in the melting ranges of a magnesian alkali basalt, a transitional basalt, an olivine tholeiite, a tholeiitic andesite, and an augite leucitite at pressures between 8 and 45 kb show complex variation. Ca-poor pyroxene precipitated only from the alkali basalt at pressures between 14 and 18 kb. Pyroxene falling near the Di-Hed join in the pyro...

Recent experiments show evidence of fluctuating magnetism in δ-Pu. This has direct consequences for the atomic volume of this metal phase and gives a simple explanation for its anomalously low density. Earlier there has from the experimental community been a strong emphasis on the absence of magnetism in Pu, a view which has severely delayed the development of a proper description of the physic...

Chemistry involves the study of the reactions and properties of the elements and their compounds. After over two centuries of systematic chemical research, combined with the modern use of spectroscopy and diffraction methods to determine structure and valence states and detailed quantum mechanical investigations of interatomic bonding; it is now generally accepted that the fundamentals of chemi...

Experiments under hydrostatic and uniaxial pressure serve not only as a guide in the synthesis of materials with superior superconducting properties but also allow a quantitative test of theoretical models. In this chapter the pressure dependence of the superconducting properties of elemental, binary, and multi-atom superconductors are explored, with an emphasis on those exhibiting relatively h...