Figure 6

Stress relaxation, strain creep, and indention depth creep and force relaxation. (a) Stress relaxation of TMV/Ba²⁺ superlattice under uniform tensile/compressive strains. (b) strain creep under uniform tensile/compressive stresses. (c) Indentation depth creep with a rigid spherical indenter (R = 12 nm) under constant forces. (d) Indentation force relaxation with a rigid spherical indenter (R = 12 nm) under constant indentation depths.