Stabilization of hydrogen and deuterium atoms in argon and neon matrices

Improved experimental technique has been used to stabilized hydrogen and deuterium atoms in solid Ar and Ne matrices. It is found that H and D atoms are stabilized in these matrices at two nonequivalent trapping sites. For H and D atoms in solid argon, the narrowest experimentally recorded EPR spectral lines having a width ΔH = 55 (15) mG have been observed during matrix isolation of particles. The isotope effect has been detected in the matrix shifts of hyperfine structure constants of stabilized atoms.

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