Current-driven orbital order-disorder transition in LaMnO3

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.

7 pages including 5 figures; resolution of Fig.1 is better here than the published version

References in corpus (2)

• Origin of Jahn-Teller distortion and orbital-order in LaMnO3
• Evolution of orbital phases with particle size in nanoscale stoichiometric LaMnO3

Cited by in corpus (3)

• High bias anomaly in YBa2Cu3O7/LaMnO_{3+delta}/YBa2Cu3O7 Superconductor/Ferromagnetic Insulator/Superconductor junctions: Evidence for a long-range superconducting proximity effect through the conduction band of a ferromagnetic insulator
• Scaling of NonOhmic Conduction in Strongly Correlated Systems
• Electric field driven destabilization of the insulating state in nominally pure LaMnO3