Physics of the Solid State 

About: Physics of the Solid State is an academic journal published by MAIK Nauka/Interperiodica. The journal publishes majorly in the area(s): Phase transition & Solid-state physics. It has an ISSN identifier of 1063-7834. Over the lifetime, 10470 publications have been published receiving 62063 citations.

On the history of the discovery of nanodiamond synthesis

Abstract: The history of the discovery of nanodiamond synthesis, the investigation of nanodiamond properties, and the application and organization of their production in the second half of the 20th century is expounded. It is noted that this history is unique, since nanodiamond synthesis was discovered in the USSR three times over 19 years: first by K.V. Volkov, V.V. Danilenko, and V.I. Elin at the VNIITF (Snezhinsk) in 1963 and then, in 1982, by A.M. Staver and A.I. Lyamkin at the Institute of Hydrodynamics, Siberian Division, Academy of Sciences of the USSR (Novosibirsk), and by G.I. Savvakin at the Institute of Problems of Materials Science, Academy of Sciences of the UkSSR (Kiev). All of these researchers discovered nanodiamond synthesis accidentally while studying diamond synthesis by shock compression of nondiamond carbon modifications in blast chambers. The priority of work by Russian scientists in this field is demonstrated.

Low-dimensional thermoelectric materials

Abstract: The promise of low dimensional thermoelectric materials for enhanced performance is reviewed, with particular attention given to quantum wells and quantum wires. The high potential of bismuth as a low-dimensional thermoelectric material is discussed.

Surface chemistry of nanodiamonds

Abstract: The experimental data available in the literature and the results obtained by the author in research into the structure of nanodiamonds and the physicochemical and chemical properties of their surface are generalized. An account is given of the problems concerning the chemical state and modification of the nanodiamond surface in gaseous and liquid media and the infiuence of modification on the sorption and catalytic properties of nanodiamonds, their compactibility, and sintering. The similarity and difference in the behavior of nanodiamonds and diamond macrocrystals in oxidation processes are discussed. The activation energies of oxidation of nanodiamonds by different reagents are determined in the absence and presence of catalysts.

Composition-induced transition of spin-modulated structure into a uniform antiferromagnetic state in a Bi 1−x La x FeO 3 system studied using 57 Fe NMR

Abstract: By analyzing the NMR line shape, the transformation of a spatially spin-modulated magnetic structure in BiFeO3 into an ordinary spatially uniform structure of the LaFeO3 orthoferrite in Bi1−x LaxFeO3 solid solutions is studied. The measurements are made using a spin-echo technique at temperatures of 77 and 4.2 K on ceramics with compositions x=0, 0.1, 0.2, 0.61, 0.9, and 1.0 enriched by the 57Fe isotope. It is shown that the spin-modulated structure disappears near the concentration x=0.2, which corresponds, according to the published data, to the phase transition with a change in the unit-cell symmetry R3c → C222. A formula is obtained describing the NMR absorption line shape for the spin-modulated structure with account of local line-width. Theoretical spectra adequately describe the evolution of the experimental spectrum in the concentration range 0≤x≤0.2. Highly nonuniform local magnetic fields in the intermediate compositions make it impossible to detect NMR signals in a sample with x=0.61. A uniform magnetic structure characterized by a single narrow line arises in the range of existence of a phase with the symmetry Pnma typical of the pure orthoferrite LaFeO3.

Nanoindentation and mechanical properties of solids in submicrovolumes, thin near-surface layers, and films: A Review

Abstract: This paper presents a review devoted to the specific mechanical behavior of thin near-surface layers of various solids, materials, films, and multilayer coatings under local loading. Analysis is made of the principles, techniques, and instruments used for testing and determining mechanical properties of materials on a nanoscale, which, in recent years, have found a wide application under the general name “nanoindentation.” Information capabilities of this large and multifunctional family of methods employed for mechanical tests are discussed. Different aspects and specific features of the behavior of solids under severely constrained deformation caused by the local application of a microload to the surface of the test object are considered. Special attention is focused on the physical mechanisms of deformation and fracture under these conditions.