Current-induced phase control in charged-ordered Nd0.5Ca0.5MnO3 and Pr0.6Ca0.4MnO3 crystals
Sachin Parashar, L. Sudheendra, A. R. Raju, C. N. R. Rao
Abstract
Single crystals of Nd0.5Ca0.5MnO3 and Pr0.6Ca0.4MnO3 show current-induced insulator-metal transitions at low temperatures. In addition, the charge-ordering transition temperature decreases with increasing current. The electroresistive ratio, defined as r0.5/rI where r0.5 is the resistivity at a current of 0.5 mA and rI the resistivity at a given applied current, I, varies markedly with temperature and the value of I. Thermal hysteresis observed in Nd0.5Ca0.5MnO3 and Pr0.6Ca0.4MnO3 at the insulator-metal transition indicates that the transition is first-order. The current-induced changes are comparable to those induced by magnetic fields, and the insulator-metal transition in Pr0.6Ca0.4MnO3 is accordingly associated with a larger drop in resistivity.
Create a lesson
Related papers
Real-space obstruction control of the shift current in two-dimensional Quantum Spin Hall insulators
Michele Bagaglini, Mattia Iannetti, Jonas Erhardt et al.
Interlayer Registry Controls Polar Topology in Twisted Bilayer h-BN
Di Fan, Changming Ke, Shi Liu
Theoretical Investigation of Oxygen-Vacancy Diffusion in SrTiO3 using Neural Network Potentials
Kazutaka Nishiguchi, Ryota Yamamoto, Seiichiro Ten-no
Modelling the dynamics of the martensitic transformation in Ni2MnGa with machine-learning force-fields
Markus E. Gruner, Yulia Klunnikova, Mike J. Bruckhoff et al.
Decoupling Trap States in Amorphous Oxide Semiconductor Transistor Using a Conductive-Semiconducting-Conductive MOS Structure
Kai Chen, Wei Zhang, Xuanyao Fong et al.
Angle-Resolved Photoemission as a Sensitive Probe of Surface Quality: Sputtered versus Annealed Cu(001)
Hyeonhee Na, Jeonghwan Oh, Jinju Lee et al.