Using a pulsed superconducting-quantum-interference-device (SQUID) NMR technique, relaxation of the longitudinal magnetization in superfluid 3He has been measured in magnetic fields of 31, 102, 180, and 306 Oe in the pressure range 16-26 bar. It is observed that in both superfluid phases there is a temperature-dependent, well-defined spin-tipping angle, θc, for which the relaxation of the magnetization changes from an exponential to a nonexponential behavior.
Published in Physical Review Letters, ed. Gene D. Sprouse, Volume 40, Issue 13, 1978, pages 883-886.
Webb, R. A. (1978). Tip-angle-dependent magnetic relaxation in superfluid 3He. Physical Review Letters, 40(13), 883-886. DOI: 10.1103/PhysRevLett.40.883
© Physical Review Letters, 1978, American Physical Society