Journal of Physical Studies 13(1), Article 1701 [9 pages] (2009) DOI: https://doi.org/10.30970/jps.13.1701 RELAXATION AND THERMODYNAMIC PROPERTIES OF THE PROTON-GLASS MODEL WITH ESSENTIAL SHORT-RANGE COMPETING INTERACTIONS S. I. Sorokov, A. S. Vdovych, R. R. Levitskii Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine, 1 Svientsitskii St, 79011 Lviv, Ukraine

Within the two-particle cluster approximation for the Glauber dynamics and in the framework of the replica symmetric approach we study a proton glass model with essential competing short-range and weak long-range interactions. It is shown that the imaginary part of susceptibility exhibits a low-temperature peak which corresponds to the system transition to a non-ergodic state. The phase diagram for different interaction parameters and random internal field is plotted.

PACS number(s): 75.10.Hk, 75.10.Nr, 77.22.Ch

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