  Background: Type II shell evolution has recently been identified as a
microscopic cause for nuclear shape coexistence. Purpose: Establish a low-lying
rotational band in 96-Zr. Methods: High-resolution inelastic electron
scattering and a relative analysis of transition strengths are used. Results:
The B(E2; 0_1^+ -> 2_2^+) value is measured and electromagnetic decay strengths
of the secdond 2^+ state are deduced. Conclusions: Shape coexistence is
established for 96-Zr. Type II shell evolution provides a systematic and
quantitative mechanism to understand deformation at low excitation energies.
