Haldane conjecture and elementary excitations in theXXZspin‐1 linear chain: A novel variational approach

1990 ◽  
Vol 67 (9) ◽  
pp. 5610-5612 ◽  
Author(s):  
G. Gómez‐Santos
Keyword(s):  
Variational Approach ◽  
Linear Chain ◽  
Elementary Excitations

Spectral density approach for the damping of fermion elementary excitations in an anisotropic spin- linear chain

1984 ◽  
Vol 123 (1) ◽  
pp. 279-295 ◽  
Author(s):  
L.S. Campana ◽  
A. Caramico D'Auria ◽  
M. D'Ambrosio ◽  
L. De Cesare ◽  
U. Esposito
Keyword(s):  
Spectral Density ◽  
Linear Chain ◽  
Elementary Excitations

Fractionation of polymethylene chains: An electron crystallographic investigation

1986 ◽  
Vol 44 ◽  
pp. 794-795
Author(s):  
Douglas L. Dorset
Keyword(s):  
Cross Section ◽  
Binary Systems ◽  
Linear Chain ◽  
Pure Component ◽  
Organic Substrates ◽  
Crystallographic Investigation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Molecular Sizes ◽  
The Stability

A variety of linear chain materials exist as polydisperse systems which are difficultly purified. The stability of continuous binary solid solutions assume that the Gibbs free energy of the solution is lower than that of either crystal component, a condition which includes such factors as relative molecular sizes and shapes and perhaps the symmetry of the pure component crystal structures.Although extensive studies of n-alkane miscibility have been carried out via powder X-ray diffraction of bulk samples we have begun to examine binary systems as single crystals, taking advantage of the well-known enhanced scattering cross section of matter for electrons and also the favorable projection of a paraffin crystal structure posited by epitaxial crystallization of such samples on organic substrates such as benzoic acid.

Field ion microscope investigations of atomic processes at surfaces

1989 ◽  
Vol 47 ◽  
pp. 228-229
Author(s):  
G. L. Kellogg ◽  
P. R. Schwoebel
Keyword(s):  
Single Crystal ◽  
Crystal Surface ◽  
Linear Chain ◽  
Atom Probe ◽  
Nucleation And Growth ◽  
Single Atom ◽  
Initial Structure ◽  
Atomic Processes ◽  
Single Crystal Surfaces ◽  
Field Ion Microscope

Although no longer unique in its ability to resolve individual single atoms on surfaces, the field ion microscope remains a powerful tool for the quantitative characterization of atomic processes on single-crystal surfaces. Investigations of single-atom surface diffusion, adatom-adatom interactions, surface reconstructions, cluster nucleation and growth, and a variety of surface chemical reactions have provided new insights to the atomic nature of surfaces. Moreover, the ability to determine the chemical identity of selected atoms seen in the field ion microscope image by atom-probe mass spectroscopy has increased or even changed our understanding of solid-state-reaction processes such as ordering, clustering, precipitation and segregation in alloys. This presentation focuses on the operational principles of the field-ion microscope and atom-probe mass spectrometer and some very recent applications of the field ion microscope to the nucleation and growth of metal clusters on metal surfaces.The structure assumed by clusters of atoms on a single-crystal surface yields fundamental information on the adatom-adatom interactions important in crystal growth. It was discovered in previous investigations with the field ion microscope that, contrary to intuition, the initial structure of clusters of Pt, Pd, Ir and Ni atoms on W(110) is a linear chain oriented in the <111> direction of the substrate.

Thermodynamic calculations of linear chain molecules using a SAFT model

2001 ◽  
Vol 99 (1) ◽  
pp. 65-76 ◽  
Author(s):  
Yiping Tang, Zhaohui Wang, Benjamin C.-Y.
Keyword(s):  
Linear Chain ◽  
Thermodynamic Calculations ◽  
Chain Molecules

A new approach to the study of an Anderson impurity in a linear chain

1986 ◽  
Vol 47 (6) ◽  
pp. 967-972 ◽  
Author(s):  
A.S. da Rosa Simões ◽  
J.R. Iglesias
Keyword(s):  
Linear Chain ◽  
New Approach
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