scholarly journals The one-dimensional crystal. II. A graphical method for computing structure factors

1949 ◽  
Vol 2 (6) ◽  
pp. 370-371
Author(s):  
G. H. Donnay
Keyword(s):  
Graphical Method ◽  
One Dimensional ◽  
Structure Factors ◽  
The One ◽  
Computing Structure ◽  
Dimensional Crystal

New exact results for the defective square lattice

1976 ◽  
Vol 80 (2) ◽  
pp. 365-381 ◽  
Author(s):  
G. Ronca
Keyword(s):  
Closed Form Solution ◽  
Exact Result ◽  
Form Solution ◽  
Square Lattice ◽  
Zero Temperature ◽  
Real Crystal ◽  
One Dimensional ◽  
Resonance Modes ◽  
The One ◽  
Dimensional Crystal

Since the publication of the fundamental papers by Lifshitz (1, 2) and Montroll and Potts (3, 4) many authors have investigated the effect of an isotopic impurity on the lattice vibrations of a harmonic crystal at zero temperature. A fairly broad knowledge is now available on scattering amplitudes, localized modes and resonance modes (6, 7). Nevertheless, as pointed out by Maradudin and Montroll (see (7), p. 430), a closed form solution to the problem has been found only for the one-dimensional crystal, the work done on two and three-dimensional crystals being predominantly numerical. Unfortunately the one-dimensional crystal, as an approximation for a real crystal is an oversimplified model, incapable as it is of exhibiting resonance modes. To the author's knowledge the most significant exact result concerning the classical behaviour at zero temperature of crystals having a dimensionality higher than one is the connexion, calculated by Mahanty et al. (5) between localized mode frequency and impurity mass for the case of a square lattice undergoing planar vibrations.

scholarly journals Experimental disclosing the composition- and structure-dependent deep-level defect in photovoltaic antimony trisulfide materials

2021 ◽  
Author(s):  
Weitao Lian ◽  
Chen-Hui Jiang ◽  
Yiwei Yin ◽  
Rongfeng Tang ◽  
Gang Li ◽  
...  
Keyword(s):  
Carrier Lifetime ◽  
Deep Level ◽  
Deep Level Defect ◽  
One Dimensional ◽  
Composition And Structure ◽  
Transient Spectroscopy ◽  
The One ◽  
Low Symmetry ◽  
Dimensional Crystal ◽  
Excellent Stability

Abstract Antimony trisulfide (Sb2S3) represents a kind of emerging light-harvesting material with excellent stability and abundant elemental storage. Due to the low-symmetry, theoretical investigation has pointed out that there exists complicated defect properties. However, there is no experimental verification on the defect property. Here, we conduct optical deep-level transient spectroscopy to investigate defect properties in Sb2S3 and show that there are maximum three kinds of deep level defects observed, depending on the composition of Sb2S3. We also find that the Sb-interstitial (Sbi) defect does not show critical influence on the carrier lifetime, indicating the high tolerance of the one-dimensional crystal structure where the space of (Sb4S6)n ribbons is able to accommodate impurities to certain extent. This work provides basic understanding on the defect properties of quasi-one-dimensional materials and a guidance for the efficiency improvement of Sb2S3 solar cells.

Time-of-flight Bragg scattering from aligned stacks of lipid bilayers using the Liquids Reflectometer at the Spallation Neutron Source

2012 ◽  
Vol 45 (6) ◽  
pp. 1219-1227 ◽  
Author(s):  
Jianjun Pan ◽  
Frederick A. Heberle ◽  
Justin R. Carmichael ◽  
John F. Ankner ◽  
John Katsaras
Keyword(s):  
Lipid Bilayers ◽  
Neutron Source ◽  
Scattering Length ◽  
Time Of Flight ◽  
Spallation Neutron Source ◽  
Bragg Scattering ◽  
One Dimensional ◽  
Structure Factors ◽  
The One

Time-of-flight (TOF) neutron diffraction experiments on aligned stacks of lipid bilayers using the horizontal Liquids Reflectometer at the Spallation Neutron Source are reported. Specific details are given regarding the instrumental setup, data collection and reduction, phase determination of the structure factors, and reconstruction of the one-dimensional neutron scattering length density (NSLD) profile. The validity of using TOF measurements to determine the one-dimensional NSLD profile is demonstrated by reproducing the results of two well known lipid bilayer structures. The method is then applied to show how an antimicrobial peptide affects membranes with and without cholesterol.

The one-dimensional crystal. I. General

1949 ◽  
Vol 2 (6) ◽  
pp. 366-369 ◽  
Author(s):  
J. D. H. Donnay ◽  
G. H. Donnay
Keyword(s):  
One Dimensional ◽  
The One ◽  
Dimensional Crystal

scholarly journals Revealing composition and structure dependent deep-level defect in antimony trisulfide photovoltaics

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Weitao Lian ◽  
Chenhui Jiang ◽  
Yiwei Yin ◽  
Rongfeng Tang ◽  
Gang Li ◽  
...  
Keyword(s):  
Carrier Lifetime ◽  
Deep Level ◽  
Deep Level Defect ◽  
One Dimensional ◽  
Composition And Structure ◽  
Theoretical Investigations ◽  
Transient Spectroscopy ◽  
The One ◽  
Dimensional Crystal ◽  
Excellent Stability

AbstractAntimony trisulfide (Sb2S3) is a kind of emerging light-harvesting material with excellent stability and abundant elemental storage. Due to the quasi-one-dimensional symmetry, theoretical investigations have pointed out that there exist complicated defect properties. However, there is no experimental verification on the defect property. Here, we conduct optical deep-level transient spectroscopy to investigate defect properties in Sb2S3 and show that there are maximum three kinds of deep-level defects observed, depending on the composition of Sb2S3. We also find that the Sb-interstitial (Sbi) defect does not show critical influence on the carrier lifetime, indicating the high tolerance of the one-dimensional crystal structure where the space of (Sb4S6)n ribbons is able to accommodate impurities to certain extent. This study provides basic understanding on the defect properties of quasi-one-dimensional materials and a guidance for the efficiency improvement of Sb2S3 solar cells.

Exploring the Multidimensional Facets of Authoritarianism: Authoritarian Aggression and Social Dominance Orientation

2008 ◽  
Vol 67 (1) ◽  
pp. 51-60 ◽  
Author(s):  
Stefano Passini
Keyword(s):  
Social Dominance ◽  
Factor Model ◽  
Three Dimensional ◽  
Social Dominance Orientation ◽  
Model Fit ◽  
Regression Analyses ◽  
One Dimensional ◽  
Confirmatory Factor ◽  
The One ◽  
Better Than

The relation between authoritarianism and social dominance orientation was analyzed, with authoritarianism measured using a three-dimensional scale. The implicit multidimensional structure (authoritarian submission, conventionalism, authoritarian aggression) of Altemeyer’s (1981, 1988) conceptualization of authoritarianism is inconsistent with its one-dimensional methodological operationalization. The dimensionality of authoritarianism was investigated using confirmatory factor analysis in a sample of 713 university students. As hypothesized, the three-factor model fit the data significantly better than the one-factor model. Regression analyses revealed that only authoritarian aggression was related to social dominance orientation. That is, only intolerance of deviance was related to high social dominance, whereas submissiveness was not.

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