Current-driven orbital order-disorder transition in LaMnO3

Mondal, Parthasarathi ; Bhattacharya, Dipten ; Mandal, P. (2011) Current-driven orbital order-disorder transition in LaMnO3 Physical Review B: Condensed Matter and Materials Physics, 84 (7). 075111. ISSN 1098-0121

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Official URL: http://doi.org/10.1103/PhysRevB.84.075111

Related URL: http://dx.doi.org/10.1103/PhysRevB.84.075111

Abstract

We report significant influence of electric current on the orbital order-disorder transition in LaMnO3. The transition temperature T_OO, thermal hysteresis in the resistivity (rho) versus temperature (T) plot around T_OO, and latent heat L associated with the transition decrease with the increase in current density. Eventually, at a critical current density, L reaches zero. The transition zone, on the other hand, broadens with the increase in current density. The states at ordered, disordered, and transition zone are all found to be stable within the time window from ~10^-3 to ~10^4 seconds.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:122842
Deposited On:17 Aug 2021 09:42
Last Modified:17 Aug 2021 09:42

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