Springer Online Journal Archives 1860-2000
We have studied the orienting effect that an electric field has on the orbital motion of the pairs in superfluid 3He-B, using the orientation-dependent transverse NMR frequency shift as a probe. This method provides high resolution for studying the orienting effect for either sign of the orientational energy. Electric fields as high as 35,000 V/cm applied across the sample produced no measurable frequency shift at 0-, 10-, and 32-bar pressures. This gives upper limits to the orientational energy of 1.4 × 10\s-3, 1.0 × 10\s-3 and 4 × 10\s-4 times the values expected from simple theory.
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