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Oscillator strength calculations in color centers of diamond and the role of spin

Heidari Saani, M ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. DOI: 10.1140/epjb/e2004-00215-9
  3. Publisher: 2004
  4. Abstract:
  5. A generalized Hubbard model based on a molecular approach is used to calculate many electron wavefunctions of diamond vacancies. We have calculated the oscillator strength of the dipole transition rates from the ground states of the neutral and negatively charged vacancies. The ratio of the oscillator strengths is in very good quantitative agreement with the reported optical spectroscopic data. Electronic configurations in the ground and dipole allowed excited states are presented. With the proposed picture, the much larger oscillator strength of the negatively charged vacancy with respect to other experimentally investigated color centers N-V, H3, X3 and H4 is explained
  6. Keywords:
  7. Approximation theory ; Strength of materials ; Quantum theory ; Point defects ; Photons ; Phase transitions ; Parameter estimation ; Oscillators (electronic) ; Molecular dynamics ; Hamiltonians ; Chemical vapor deposition ; Computational methods ; Electromagnetic fields ; Eigenvalues and eigenfunctions ; Color
  8. Source: European Physical Journal B ; Volume 39, Issue 4 , 2004 , Pages 441-446 ; 14346028 (ISSN)
  9. URL: https://link.springer.com/article/10.1140/epjb/e2004-00215-9