Kinetic arrest of field-temperature induced first order phase transition in quasi-one dimensional spin system Ca3Co2O6

De, Sayan; Kumar, Kranti; Banerjee, A.; Chaddah, P.

doi:10.1063/1.4948132

Cited by 4 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…FM-AFM transition in doped CeF 2 alloys, magneto-structural transition in Gd 5 (Ge x Si 1−x ) 4 , FeRh alloy, magnetic shape memory alloys, geometrically frustrated spin chain compounds (e.g. Ca 3 Co 2 O 6 ), etc, [40][41][42][43][44]. Kinetic arrest in such systems is a result of structural complexity.…”

Section: Discussionmentioning

confidence: 99%

Hysteresis dynamics of rare earth nickelates: unusual scaling exponent and asymmetric spinodal decomposition

Prajapati

Kundu²,

Das³

et al. 2022

New J. Phys.

View full text Add to dashboard Cite

Understanding the dynamics of phase-transitions, interpretations of their experimental observations and their agreement with theoretical predictions continue to be a long-standing research interest. Here, we present detailed phase-transition dynamics of rare earth nickelates associated with its first-order metal-insulator transition. The thermal hysteresis shows absence of training effect and defies the Preisach model. A large phase-coexistence in insulating state during cooling suggests kinetically arrested glassy dynamics of the phase-transition. Experimentally derived hysteresis scaling exponent is much larger than the mean-field predicted universal value of 2/3. In the phase-coexistence region, the quench and hold measurement depicts higher stability of the metallic state compare to that of the insulating one; highlighting the manifestation of phase-coexistence via asymmetric spinodal decomposition. All these observations for nickelates are in stark contrast to the phase-transition dynamics of canonically similar vanadates but are closer to those of glasses, alloys. A substantial disagreement between the experiment and theory emphasizes the necessity to incorporate system-dependent details for the accurate interpretation of the experimental results.

show abstract