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

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.

Accepted version, to appear in PSS(b) Special Issue 'Ferroic Glasses'

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Cited by in corpus (3)

• Tracking a hysteretic and disorder-broadened phase transition via the electromagnon response in improper ferroelectrics
• Necessary and sufficient condition for a disorder-broadened transition to be identified as 1st order
• Coexistence of magnetic and dielectric glassy states in alternating kagome and triangular lattice LuBaCo${}_4$O${}_7$ cobaltite