New Dissipation Relaxation Phenomenon in Oscillating Solid He-4

Abstract

We describe the first observations on the time-dependent dissipation when the drive level of a torsional oscillator containing solid He-4 is abruptly changed. The relaxation of dissipation in solid He-4 shows rich dynamical behavior including exponential and logarithmic time-dependent decays, hysteresis, and memory effects.

4 pages, 4 figures

References in corpus (7)

• Low Temperature Shear Modulus Changes in Solid 4-He and Connection to Supersolidity
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Cited by in corpus (1)

• Evidence for a Superglass State in Solid 4He