FREQUENCY AND TEMPERATURE-DEPENDENCE OF THE RELAXATION-TIMES OF LIQUID-HE-3 CONFINED BY FLUOROCARBON MICROSPHERES

The relaxation times, T//1 and T//2, of liquid **3He confined by fluorocarbon microspheres have been measured over a wide spectrum of frequencies (125 kHz to 100 MHz) and over a large range of temperatures. Below approximately 100 mK, T//1 and T//2 have a linear temperature dependence. In the linear temperature regime, T//1 varies linearly with frequency over the entire frequency range, whereas T//2 is frequency independent. The results are discussed in terms of existing theoretical models.