Amplitude-Dependent Internal Friction in SrTiO 3 in a Vicinity of the Ferroelastic Phase Transition

Amplitude dependences of the low-frequency internal friction and shear modulus in the ferroelastic as well as in the paraelastic phases of SrTiO 3 crystal have been studied using a torsion pendulum. Experimental data are discussed in terms of models of dislocation hysteresis and ferroelastic domain boundary dynamics.

Keywords:

• Internal Friction
• Shear Modulus
• Amplitude Dependence
• Static Stress
• Loss Mechanisms