1. Manganite-based magnetic tunnel junction with piezoelectric barrier.
- Author
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Mundle, R., Konda, R. B., Bamiduro, O., Yasar, O., Williams, F., Bahoura, M., Pradhan, A. K., Sahu, D. R., Huang, J.-L., and Nikonov, D. E.
- Subjects
MANGANITE ,QUANTUM tunneling ,PIEZOELECTRICITY ,PULSED laser deposition ,HYSTERESIS ,FERROMAGNETISM - Abstract
We report on the fabrication and tunneling characteristics of pulsed-laser deposited LaSrMnO (LSMO)/PbZrTiO(PZT)/LSMO/SrTiO
3 multilayers, using PZT layer as a tunnel barrier. The trilayer films show magnetic onset at about 360 K with ferromagnetic hysteresis at room temperature. The microscopic studies show that the effective barrier thickness is reduced due to the presence of defects in the barrier region. Our results suggest that the asymmetric deformation of the barrier potential profile induced by the ferroelectric polarization of PZT influences the tunneling characteristics and can be used for electrically controlled readout in quantum-computing schemes. [ABSTRACT FROM AUTHOR]- Published
- 2009
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