Variational approach to the calculation of the structure and properties of H 3 + ions in strong magnetic fields
1977; American Institute of Physics; Volume: 16; Issue: 5 Linguagem: Inglês
10.1103/physreva.16.1747
ISSN0556-2791
Autores Tópico(s)Quantum optics and atomic interactions
ResumoThe structure and properties of ${\mathrm{H}}_{3}^{+}$ ions in magnetic fields with strengths of the order of ${10}^{9}$-${10}^{10}$ G have been studied by means of a variational method. It is found that there is a rapid change in the configuration of the ${\mathrm{H}}_{3}^{+}$ ion from its equilateral triangular structure to a linear chain, around a magnetic field ${B}_{c}=2.35\ifmmode\times\else\texttimes\fi{}{10}^{9}$ G. The exchange contribution increases with the magnetic field, and its effect on ${B}_{c}$ is to lower its value. The vibrational frequencies of ${\mathrm{H}}_{3}^{+}$, about its ground-state structure increase with the field strength and undergo a rapid change near ${B}_{c}$. The oscillator strengths for the electronic transition stay nearly constant in the range 0-4.7 \ifmmode\times\else\texttimes\fi{} ${10}^{10}$ G of the magnetic field strength studied.
Referência(s)