Non-linear conduction in charge-ordered Pr${}_{0.63}$ Ca${}_{0.37}$ MnO${}_3$ : Effect of magnetic fields

Abstract

Non-linear conduction in a single crystal of charge-ordered Pr${}_{0.63}$Ca${}_{0.37}$MnO${}_3$ has been investigated in an applied magnetic field. In zero field, the non-linear conduction, which starts at T$<$T${}_{CO}$ can give rise to a region of negative differential resistance (NDR) which shows up below the Néel temperature. Application of a magnetic field inhibits the appearance of NDR and makes the non-linear conduction strongly hysteritic on cycling of the bias current. This is most severe in the temperature range where the charge ordered state melts in an applied magnetic field. Our experiment strongly suggests that application of a magnetic field in the CO regime causes a coexistance two phases.

arXiv comment4 pages TeX; 5 eps figures; Submitted to Phys. Rev. B

References in corpus (2)

• Anomalous ferromagnetic spin fluctuations in an antiferromagnetic insulator Pr_{1-x}Ca_{x}MnO_{3}
• Non-linear electrical conduction and broadband noise in charge-ordered rare earth manganate Nd_0.5Ca_0.5MnO_3

Cited by in corpus (16)

• Pressure effects on charge, spin, and metal-insulator transitions in narrow bandwidth manganite Pr${}_{1-x}$Ca${}_x$MnO${}_3$
• Anomaly in the dielectric response at the charge orbital ordering transition of crystalline Pr0.67Ca0.33MnO3
• Non-linear electrical response in a non-charge-ordered manganite: Pr0.8Ca0.2MnO3
• Non-linear effects and Joule heating in I-V curves in manganites
• Transport anisotropy in biaxially strained La(2/3)Ca(1/3)MnO(3) thin films
• Magnetic Field resulting from non-linear electrical transport in single crystals of charge-ordered Pr${}_{0.63}$ Ca${}_{0.37}$ MnO${}_3$}
• Specific heat study of single crystalline Pr${}_{0.63}$ Ca${}_{0.37}$ MnO${}_3$ in presence of a magnetic field
• Current localization and Joule self-heating effects in Cr doped Nd0.5Ca0.5MnO3 manganites
• Low frequency random telegraphic noise (RTN) and 1/f noise in the rare-earth manganite Pr${}_{0.63}$Ca${}_{0.37}$MnO${}_3$ near the charge-ordering transition
• Non-linear electrical response in a charge/orbital ordered ${\mathrm{Pr}}_{0.63}$Ca${}_{0.37}$MnO${}_3$ crystal : the charge density wave analogy
• Colossal electroresistance in ferromagnetic insulating state of single crystal Nd${}_0.7$Pb${}_0.3$MnO${}_3$
• Collapse of the charge ordering state at high magnetic fields in the rare-earth manganite, Pr_{0.63}Ca_{0.37}MnO_3
• Electric field driven destabilization of the insulating state in nominally pure LaMnO3
• Pulse width controlled resistivity switching at room temperature in Bi0.8Sr0.2MnO3
• Thermal relaxation in charge ordered Pr${}_{0.63}$ Ca${}_{0.37}$ MnO${}_3$ in presence of a magnetic field
• Voltage bias induced modification of all oxide Pr0.5Ca0.5MnO3/SrTi0.95Nb.05O3 junctions