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arXiv · 1401.0891

Phase-coexistence and glass-like behavior in magnetic and dielectric solids with long range order

S. B. Roy·P. Chaddah
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Abstract

Phase-coexistence in the manganese-oxide compounds or manganites with colossal magneto-resistance (CMR) has been generally considered to be an inhomogeneous ground state. An alternative explanation of phase-coexistence as the manifestation of a disorder-broadened first order magnetic phase transition being interrupted by the glasslike arrest of kinetics is now gradually gaining ground. This kinetic arrest of a first order phase transitions, between two states with long-range magnetic order, has actually been observed in various other classes of magnetic materials in addition to the CMR manganites. The underlying common features of this kinetic arrest of a first order phase transition are discussed in terms of the phenomenology of glasses. The possible manifestations of such glass-like arrested states across disorder-influenced first order phase transitions in dielectric solids and in multiferroic materials, are also discussed.

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S. B. Roy, P. Chaddah. 2014-03-11. Phase-coexistence and glass-like behavior in magnetic and dielectric solids with long range order. https://doi.org/10.1002/pssb.201451004

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