A Relation Between Bond Multiplicity and Interatomic Distance

1946 ◽  
Vol 14 (12) ◽  
pp. 743-743 ◽  
Author(s):  
R. T. Lagemann
Keyword(s):  
Interatomic Distance ◽  
Bond Multiplicity

Ce:LaB3O6 glass for high-resolution radiation dosimetry

2022 ◽  
Author(s):  
Dongsheng Yuan ◽  
Encarnación G. Víllora ◽  
Takumi Kato ◽  
Daisuke Nakauchi ◽  
Takayuki YANAGIDA ◽  
...  
Keyword(s):  
High Resolution ◽  
Quantum Efficiency ◽  
Linear Dependence ◽  
Interatomic Distance ◽  
Irradiation Dose ◽  
Radiation Dosimetry ◽  
Dipole Interaction ◽  
Concentration Quenching ◽  
Optimum Concentration ◽  
Reducing Atmosphere

Abstract Ce:LaB3O6 (LBO) glass, whose constituents are abundant elements and fabrication is easy and cheap, is found to be a promising thermoluminescence (TL) dosimeter. This is originally achieved by CeF3 doping and melting under a reducing atmosphere, with the optimum concentration of 0.1% (quantum efficiency = 66%). The corresponding Ce interatomic distance is ~ 4 nm, below which concentration quenching occurs via Ce dipole-dipole interaction, as elucidated experimentally by Dexter’s theory. Ce:LBO exhibits a good dose resolution, with a linear dependence covering five orders of magnitude on both irradiation-dose and TL-response. Furthermore, it can be cyclically irradiated and read without degradation.

Spin–Spin Correlations in Site Disordered ±J 2D Ising Spin Glasses

1998 ◽  
Vol 09 (05) ◽  
pp. 685-691
Author(s):  
B. Kawecka-Magiera ◽  
A. Z. Maksymowicz ◽  
M. Kowal ◽  
K. Kulakowski
Keyword(s):  
Correlation Functions ◽  
Spin Glasses ◽  
Interatomic Distance ◽  
Spin Correlation ◽  
Two Dimensional ◽  
Spin Correlations ◽  
Ising Spin ◽  
Bond System ◽  
Random Site

Spin–spin correlation functions <S(0)S(R)> as dependent on interatomic distance R are studied in the random-site two-dimensional Ising S=1/2 ±J system. Oscillations of the correlation functions are found, which is not a case in the random-bond system.

scholarly journals Relationship and discrepancies between the Extended-Rydberg and the Generalized Buckingham potential energy functions

2007 ◽  
Vol 72 (2) ◽  
pp. 159-164 ◽  
Author(s):  
Teik-Cheng Lim
Keyword(s):  
Molecular Modeling ◽  
Lower Energy ◽  
Interatomic Distance ◽  
Energy Difference ◽  
Maclaurin Series ◽  
Energy Functions ◽  
Finite Distortion ◽  
Potential Energy Functions ◽  
Buckingham Potential ◽  
Interatomic Energy

This paper relates the interatomic energy according to the Extended-Rydberg and the Generalized Buckingham potential functions by applying a Maclaurin series expansion on the latter and thereafter comparing it with the former. In so doing, the plotted curves of these two functions not only show equal curvature at the equilibrium state, but also reveal a discrepancy for the finite distortion. It is shown that, when equated at equilibrium, the Generalized Buckingham gives a lower energy in comparison to the Extended-Rydberg at finite bond compression and stretching. However, the energy difference diminishes when the interatomic distance exceeds twice that at equilibrium. Due to such discrepancies upon comparative normalization, it would be beneficial for computational chemists to select the appropriate potential function for the purpose of conservative molecular modeling. .

Interpretation of Hardness in Pseudobinary Nitrides by Bulk Modulus Estimated from Interatomic Distance

2005 ◽  
Vol 502 ◽  
pp. 81-86 ◽  
Author(s):  
Yukio Makino
Keyword(s):  
Transition Metal ◽  
Aluminum Nitride ◽  
Bulk Modulus ◽  
Phase Change ◽  
Interatomic Distance ◽  
Drastic Change ◽  
Compositional Dependence ◽  
Metal Nitride ◽  
Transition Metal Nitride ◽  
Metal Aluminum

Hardness of the pseudobinary transition metal aluminum nitride (T-Al-N) films is improved with increasing the AlN content as far as the B1structure is maintained. A drastic change in the compositional dependence of the hardness corresponds to the phase change of the pseudobinary nitride from B1(NaCl) to B4(wurtzite) structure. Predicted value of AlN content for the drastic change agrees with the AlN content determined experimentally. Hardness of various T-Al-N films was closely correlated with the bulk modulus calculated from interatomic distance based on the power functional formula. The improvement of hardness is attributed to the inherent increase of bulk modulus due to dissolution of AlN into transition metal nitride.

Effects of atomic species and interatomic distance on the interactions in one-dimensional nanomaterials

2019 ◽  
Vol 21 (46) ◽  
pp. 25889-25895
Author(s):  
Yi-Fan Bu ◽  
Ming Zhao ◽  
Yun Chen ◽  
Wang Gao ◽  
Qing Jiang
Keyword(s):  
Interatomic Distance ◽  
Many Body ◽  
One Dimensional ◽  
Atomic Species ◽  
Many Body Effects ◽  
The Many

The many-body effects of vdW interactions within 1D wires vary with the interatomic distance of wires and atomic species.

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