Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-05-18
Phys. Rev. B 84, 075111 (2011)
Physics
Condensed Matter
Strongly Correlated Electrons
7 pages including 5 figures; resolution of Fig.1 is better here than the published version
Scientific paper
10.1103/PhysRevB.84.075111
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.
Bhattacharya Dipten
Mandal Pabitra
Mondal Parthasarathi
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