# Enhancement of equilibrium fraction by heterogeneous nucleation in a "phase separated" half-doped manganite

Source: [Enhancement of equilibrium fraction by heterogeneous nucleation in a "phase separated" half-doped manganite](<https://www.sota2.com/research/paper/68fa21067a2b558e29334c3b>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-28T13:52:11.204Z

Authors: P. Chaddah, Kranti Kumar, A. Banerjee

Published: 2007-10-01T15:03:28.000Z

## Abstract

Glass-like arrest of kinetics has been observed across many magnetic first-order transitions. By traversing the two control variable H-T space, tunable coexisting fractions of arrested and equilibrium phases have been observed. We report here a fortuitous situation in a half-doped manganite sample, where these features occur by varying only temperature (T) along the H=0 line. The resistivity at 5 K rises by more than a factor of three provided second cool-down is effected from a specified intermediate T. This significant enhancement results from heterogeneous nucleation during second cool-down of regions that were kinetically arrested during first cool-down.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/0710.0263>)

[PDF](<https://arxiv.org/pdf/0710.0263.pdf>)