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- Rubén A. Vargas, FASES Y TRANSICIONES DE FASE EN MATERIA CONDENSADA , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 27 Núm. 104 (2003)
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Usando medidas de espectroscopia de impedancias en el rango de las radiofrecuencias en dos tipos de conductores protónicos con estructuras desordenadas, cristales iónicos con enlaces de hidrógeno desordenados (MH2PO4, M = NH4, K) y polímeros sólidos basados en poli alcohol de vinilo (PVOH), se ha investigado la dinámica de protones. Se encuentra que obedecen a similares características en los espectros de la conductividad, permitividad y módulo eléctrico complejos. En efecto, muestran una activación térmica de la conductividad tipo Arrhenius; sus conductividades son descritas a altas frecuencias (ω/2
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