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Titelei

作者信息未提供1997-08-01Applied Rheology

Optical absorption by small metallic particles

P. M. Tomchuk、Bogdan Tomchuk1997-08-01Journal of Experimental and Theoretical Physics

We study theoretically the dependence of absorption by small metallic particles on particle shape and wave polarization in the IR frequency range. We examine the electric and magnetic absorption by small particles. The particles may be either larger or smaller than the electron mean free path. We show that for asymmet…

Optical Polarization and EllipsometryGold and Silver Nanoparticles Synthesis and ApplicationsRandom lasers and scattering media

Intramolecular Reactions of Temporarily Silicon-Tethered Molecules

Louis Fensterbank、Max Malacrìa、Scott McN. Sieburth1997-08-01Synthesis

All articles of this category The Temporary Silicon Connection transforms a potential inter molecular reaction into an intra molecular one, by transiently connecting both partners through a silicon linkage. In addition to entropic advantages, temporary connectivity forces regioselectivity and high stereoselectivity of…

Semiconductor materials and interfacesSemiconductor materials and devicesSilicon Nanostructures and Photoluminescence

Hydrogen-Bond Acceptor and Donor Properties of Divalent Sulfur (Y-S-Z and R-S-H)

Frank H. Allen、C. M. Bird、R. Scott Rowland 等 4 位作者1997-08-01Acta Crystallographica Section B Structural Science

The hydrogen-bond acceptor ability of divalent sulfur in Y —S— Z systems, Y , Z = C, N, O or S, and the donor ability of thiol S—H have been studied using crystallographic data retrieved from the Cambridge Structural Database. Of 1811 Y —S— Z substructures that co-occur with N—H or O—H donors, only 86 (4.75%) form S..…

Solid-state spectroscopy and crystallographySulfur-Based Synthesis TechniquesOrganometallic Compounds Synthesis and Characterization

Determination of the universality class of Gadolinium

E. Frey、F. Schwabl、S. Henneberger 等 7 位作者1997-08-01arXiv

We resolve a longstanding puzzle for the static and dynamic critical behavior of Gadolinium by a combined theoretical and experimental investigation. It is shown that the spin dynamics of a three dimensional ferromagnet with hcp lattice structure and a spin-spin interaction given by both exchange and dipole-dipole int…

cond-mat.stat-mechMaterials Science

The Use of the Pseudo-Voigt Function in the Variance Method of X-ray Line-Broadening Analysis

F. Sánchez‐Bajo、F.L. Cumbrera1997-08-01Journal of Applied Crystallography

A modified application of the variance method, using the pseudo-Voigt function as a good approximation to the X-ray diffraction profiles, is proposed in order to obtain microstructural quantities such as the mean crystallite size and root-mean-square (r.m.s.) strain. Whereas the variance method in its original form is…

X-ray Diffraction in CrystallographyMicrostructure and Mechanical Properties of SteelsMicrostructure and mechanical properties