Low-current-induced electrical hysteresis in Nd0.7 Ca 0.3 MnO3
Journal
Applied Physics Letters
Journal Volume
88
Journal Issue
22
Date Issued
2006
Author(s)
Abstract
The electrical characteristics of Nd0.7Ca0.3MnO3 were investigated by measuring voltage versus current (V-I) at various temperatures. The V-I curves of the Nd0.7Ca0.3MnO3 sample change from linear to nonlinear behavior at temperatures below the charge ordering (CO) temperature (TCO∼200K). An unexpected and reproducible electrical hysteresis loop is observed in the linear region below the Curie temperature (TC∼110K); it is associated with the “tearing” of a two-domain structure of weak and strong CO state. The required current for this hysteresis is of the order of microamperes, which is appropriate for the low-current memory devices.
SDGs
Type
journal article