The NMR frequencies of the helical texture in 3He-A in the presence of a magnetic field parallel to the superflow are reexamined in the entire stability region. The effects of the anisotropic contribution to the spin susceptibility are explicitly included and are shown to leave previous results qualitatively unchanged. On the other hand, we find that the anisotropic contribution gives rise to quantitative corrections of maximally 20% at T/T c = 0.95, while its contribution in the immediate vicinity of T c is negligibly small.
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Work supported in part by the National Science Foundation under grant number DMR 76-21032.
Guggenheim Fellow 1979–1980.
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Vollhardt, D., Lin-Liu, Y.R. & Maki, K. Magnetic resonances of helical textures in 3He-A. J Low Temp Phys 43, 189–196 (1981). https://doi.org/10.1007/BF00118630
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DOI: https://doi.org/10.1007/BF00118630