Unusual Electric field effects in Nd0.7Sr0.3MnO3

Publication Type

Journal Article

Authors

DOI

Abstract

Enhanced electric field (E) induced modulation of the resistance of epitaxial thin films of Nd0.7Sr0.3MnO3has been observed. The results show several remarkable features: first, field-direction-independent decrease of the resistance above the temperature at which the peak in resistivity occurs (Tp); second, proportionality of the modulation to E2; third, a reduction in the magnitude and field-direction-independent reversal of the sign of ΔR/R just below Tp; and fourth, a prompt time response at high temperatures and a slower response near Tp. These results are consistent with a model of a polarization-induced lattice distortion coupling with both spin and charge transport. © 1996 The American Physical Society.

Journal

Physical Review Letters

Volume

77

Year of Publication

1996

ISSN

00319007

Notes

cited By 91

Research Areas