Hydrogen molecules and chains in a superstrong magnetic field

Details Hydrogen molecules and chains in a superstrong magnetic field Hydrogen molecules and chains in a superstrong magnetic field

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrva..45.4832l&link_type=abstract

Physical Review A (ISSN 1050-2947), vol. 45, pt. B, April 1, 1992, p. 4832-4847.

Physics

57

Atomic Structure, Hartree Approximation, Hydrogen, Molecular Structure, Neutron Stars, Stellar Magnetic Fields, Born-Oppenheimer Approximation, Ground State, Hydrogen Ions, Ionization Potentials, Variational Principles

Scientific paper

The electronic structures of hydrogen polymolecules H(n) (n = 2,3,4,...) is studied in a superstrong magnetic field (B greater than about 10 exp 12 G) typically found on the surface of a neutron star. Simple analytical scaling relations for several limiting cases (e.g., large n, high B field) are derived. The binding energies of H(n) molecules are numerically calculated for various magnetic-field strengths. For a given magnetic-field strength, the binding energy per atom in the H(n) molecules is found to approach a constant value as n increases. For typical field strengths of interest, energy saturation is essentially achieved once n exceeds 3 to 4. Also considered is the structure of negative H ions in a high magnetic field. For B about 10 exp 12 G, the dissociation energy of an atom in a hydrogen chain and the ionization potential of H(-) are smaller than the ionization potential of neutral atomic hydrogen.

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