scholarly journals Global superscaling analysis of quasielastic electron scattering with relativistic effective mass

2018 ◽  
Vol 98 (2) ◽  
Author(s):  
J. E. Amaro ◽  
V. L. Martinez-Consentino ◽  
E. Ruiz Arriola ◽  
I. Ruiz Simo
Keyword(s):  
Effective Mass ◽  
Electron Scattering

scholarly journals Electron-electron scattering in a double quantum dot: Effective mass approach

2010 ◽  
Vol 133 (10) ◽  
pp. 104704 ◽  
Author(s):  
S. Yu. Kruchinin ◽  
A. V. Fedorov ◽  
A. V. Baranov ◽  
T. S. Perova ◽  
K. Berwick
Keyword(s):  
Quantum Dot ◽  
Effective Mass ◽  
Electron Scattering ◽  
Double Quantum ◽  
Double Quantum Dot ◽  
Effective Mass Approach

Study of charge transfer in FeTi

1983 ◽  
Vol 41 ◽  
pp. 296-297
Author(s):  
J. Taft∅
Keyword(s):  
Charge Transfer ◽  
Charge Distribution ◽  
Electron Scattering ◽  
Periodic System ◽  
Electron Distribution ◽  
Scattering Amplitude ◽  
Transition Elements ◽  
Hartree Fock ◽  
Cscl Structure ◽  
The Right

It is well known that for reflections corresponding to large interplanar spacings (i.e., sin θ/λ small), the electron scattering amplitude, f, is sensitive to the ionicity and to the charge distribution around the atoms. We have used this in order to obtain information about the charge distribution in FeTi, which is a candidate for storage of hydrogen. Our goal is to study the changes in electron distribution in the presence of hydrogen, and also the ionicity of hydrogen in metals, but so far our study has been limited to pure FeTi. FeTi has the CsCl structure and thus Fe and Ti scatter with a phase difference of π into the 100-ref lections. Because Fe (Z = 26) is higher in the periodic system than Ti (Z = 22), an immediate “guess” would be that Fe has a larger scattering amplitude than Ti. However, relativistic Hartree-Fock calculations show that the opposite is the case for the 100-reflection. An explanation for this may be sought in the stronger localization of the d-electrons of the first row transition elements when moving to the right in the periodic table. The tabulated difference between fTi (100) and ffe (100) is small, however, and based on the values of the scattering amplitude for isolated atoms, the kinematical intensity of the 100-reflection is only 5.10-4 of the intensity of the 200-reflection.

Sign in / Sign up

Export Citation Format

Share Document