scholarly journals End-to-end distribution function of two-dimensional stiff polymers for all persistence lengths

2004 ◽  
Vol 330 (3-4) ◽  
pp. 254-259 ◽  
Author(s):  
B. Hamprecht ◽  
W. Janke ◽  
H. Kleinert
Keyword(s):  
Distribution Function ◽  
Two Dimensional ◽  
End To End

Ferromagnetic Ordering in a Two-Dimensional Copper Complex with Dual End-to-End and End-On Azide Bridges

2000 ◽  
Vol 112 (20) ◽  
pp. 3779-3781 ◽  
Author(s):  
Zhen Shen ◽  
Jing-Lin Zuo ◽  
Song Gao ◽  
You Song ◽  
Chi-Ming Che ◽  
...  
Keyword(s):  
Copper Complex ◽  
Two Dimensional ◽  
End To End ◽  
Ferromagnetic Ordering

Synthesis and characterization of two-dimensional Nb4C3 (MXene)

2014 ◽  
Vol 50 (67) ◽  
pp. 9517-9520 ◽  
Author(s):  
M. Ghidiu ◽  
M. Naguib ◽  
C. Shi ◽  
O. Mashtalir ◽  
L. M. Pan ◽  
...  
Keyword(s):  
Distribution Function ◽  
Hydrofluoric Acid ◽  
Pair Distribution Function ◽  
Function Analysis ◽  
Synthesis And Characterization ◽  
Two Dimensional ◽  
Phase Pure

By etching Nb4AlC3 powders in hydrofluoric acid, a phase-pure, highly conductive, Nb4C3 MXene – the second with formula M4X3 – was produced. The latter's structure was investigated using pair distribution function analysis.

Self-Organization of Nanorods into Ultra-Long Range Two-Dimensional Monolayer End-to-End Network

Nano Letters ◽  
2014 ◽  
Vol 15 (1) ◽  
pp. 714-720 ◽  
Author(s):  
Dahin Kim ◽  
Whi Dong Kim ◽  
Moon Sung Kang ◽  
Shin-Hyun Kim ◽  
Doh C. Lee
Keyword(s):  
Long Range ◽  
Self Organization ◽  
Two Dimensional ◽  
End To End

scholarly journals Time-resolved pair distribution function analysis of disordered materials on beamlines BL04B2 and BL08W at SPring-8

2018 ◽  
Vol 25 (6) ◽  
pp. 1627-1633 ◽  
Author(s):  
Koji Ohara ◽  
Satoshi Tominaka ◽  
Hiroki Yamada ◽  
Masakuni Takahashi ◽  
Hiroshi Yamaguchi ◽  
...  
Keyword(s):  
Distribution Function ◽  
Pair Distribution Function ◽  
Structural Changes ◽  
Function Analysis ◽  
Image Data ◽  
High Energy ◽  
Disordered Materials ◽  
X Rays ◽  
Two Dimensional ◽  
Time Resolved

A dedicated apparatus has been developed for studying structural changes in amorphous and disordered crystalline materials substantially in real time. The apparatus, which can be set up on beamlines BL04B2 and BL08W at SPring-8, mainly consists of a large two-dimensional flat-panel detector and high-energy X-rays, enabling total scattering measurements to be carried out for time-resolved pair distribution function (PDF) analysis in the temperature range from room temperature to 873 K at pressures of up to 20 bar. For successful time-resolved analysis, a newly developed program was used that can monitor and process two-dimensional image data simultaneously with the data collection. The use of time-resolved hardware and software is of great importance for obtaining a detailed understanding of the structural changes in disordered materials, as exemplified by the results of commissioned measurements carried out on both beamlines. Benchmark results obtained using amorphous silica and demonstration results for the observation of sulfide glass crystallization upon annealing are introduced.

scholarly journals Smeared Lattice Model as a Framework for Order to Disorder Transitions in 2D Systems

Crystals ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 290 ◽  
Author(s):  
Nadezhda Cherkas ◽  
Sergey Cherkas
Keyword(s):  
Distribution Function ◽  
Porous Alumina ◽  
Hexagonal Lattice ◽  
Square Lattice ◽  
2D Systems ◽  
Hard Disks ◽  
Ideal Crystal ◽  
Two Dimensional ◽  
Lattice Constants ◽  
Solid Films

Order to disorder transitions are important for two-dimensional (2D) objects such as oxide films with cellular porous structure, honeycomb, graphene, Bénard cells in liquid, and artificial systems consisting of colloid particles on a plane. For instance, solid films of porous alumina represent almost regular crystalline structure. We show that in this case, the radial distribution function is well described by the smeared hexagonal lattice of the two-dimensional ideal crystal by inserting some amount of defects into the lattice.Another example is a system of hard disks in a plane, which illustrates order to disorder transitions. It is shown that the coincidence with the distribution function obtained by the solution of the Percus–Yevick equation is achieved by the smoothing of the square lattice and injecting the defects of the vacancy type into it. However, better approximation is reached when the lattice is a result of a mixture of the smoothed square and hexagonal lattices. Impurity of the hexagonal lattice is considerable at short distances. Dependencies of the lattice constants, smoothing widths, and contributions of the different type of the lattices on the filling parameter are found. The transition to order looks to be an increase of the hexagonal lattice fraction in the superposition of hexagonal and square lattices and a decrease of their smearing.

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