Current switching effects induced by electric and magnetic fields in Sr-substituted Pr0.7Ca0.3MnO3 films

Srivastava, Shivani ; Pandey, Navneet K. ; Padhan, P. ; Budhani, R. C. (2000) Current switching effects induced by electric and magnetic fields in Sr-substituted Pr0.7Ca0.3MnO3 films Physical Review B, 62 (21). pp. 13868-13871. ISSN 0163-1829

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Official URL: http://prb.aps.org/abstract/PRB/v62/i21/p13868_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.62.13868

Abstract

Measurements of electric- and magnetic-field-induced changes in electrical conduction indicate the coexistence of charge-ordered and ferromagnetically ordered regions in the Sr-substituted Pr0.7Ca0.3MnO3 epitaxial films. Percolative, metal-like channels open up in this topologically inhomogeneous medium on the application of these fields, and a technologically promising orders-of-magnitude drop in resistance ensues. Measurements of current-voltage characteristics and the temperature dependence of resistivity show hysteretic and history effects, which are intimately linked to the relative stability of the two phases.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:5605
Deposited On:19 Oct 2010 11:46
Last Modified:23 May 2011 07:23

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