scholarly journals Communication: Extension of a universal explicit electron correlation correction to general complete active spaces

2013 ◽  
Vol 138 (21) ◽  
pp. 211101 ◽  
Author(s):  
Robin Haunschild ◽  
Lan Cheng ◽  
Debashis Mukherjee ◽  
Wim Klopper
Keyword(s):  
Electron Correlation ◽  
Correlation Correction ◽  
Explicit Electron

Explicit Electron Correlation by a Combined Use of Gaussian-Type Orbitals and Gaussian-Type Geminals

2007 ◽  
Author(s):  
Pål Dahle ◽  
Trygve Helgaker ◽  
Dan Jonsson ◽  
Peter R. Taylor ◽  
Theodore E. Simos ◽  
...  
Keyword(s):  
Electron Correlation ◽  
Gaussian Type ◽  
Combined Use ◽  
Explicit Electron

To What Extent are Inelastically Scattered Electrons Useful in the Stem?

1973 ◽  
Vol 31 ◽  
pp. 286-287 ◽  
Author(s):  
H. Rose
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
Electron Correlation ◽  
Quantum Noise ◽  
Collection Efficiency ◽  
Scanning Transmission Electron Microscope ◽  
Electron Cloud ◽  
Scanning Time ◽  
Transmission Electron ◽  
Scanning Transmission

The scanning transmission electron microscope offers the possibility of utilizing inelastically scattered electrons. Use of these electrons in addition to the elastically scattered electrons should reduce the scanning time (dose) Which is necessary to keep the quantum noise below a certain level. Hence it should lower the radiation damage. For high resolution, Where the collection efficiency of elastically scattered electrons is small, the use of Inelastically scattered electrons should become more and more favorable because they can all be detected by means of a spectrometer. Unfortunately, the Inelastic scattering Is a non-localized interaction due to the electron-electron correlation, occurring predominantly at the circumference of the atomic electron cloud.

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