2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16167We report combined high sensitivity dielectric constant and heat capacity measurements of pure solid N_2 in the presence of a small external ac electric field in the audio frequency range. We have observed strong field induced aging and memory effects which show that field cooled samples may be prepared in a variety of metastable states leading to a free energy landscape with experimentally ``tunable'' barriers, and tunneling between these states may occur within laboratory time scales.4 pages, 3 figuresDisordered Systems and Neural Networkstext