Colossal electroresistance effect around room temperature in LuFe2O4

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dc.creatorLi, Chang-Hui
dc.creatorZhang, Xiang-Qun
dc.creatorCheng, Zhao-Hua
dc.creatorSun, Young
dc.date2008-05-27
dc.date.accessioned2026-07-07T10:36:25Z
dc.date.available2026-07-07T10:36:25Z
dc.descriptionA colossal electroresistance effect is observed around room temperature in a transition metal oxide LuFe2O4. The measurements of resistance under various applied voltages as well as the highly nonlinear current-voltage characteristics reveal that a small electric field is able to drive the material from the insulating state to a metallic state. The threshold field at which the insulating-metallic transition occurs, decreases exponentially with increasing temperature. We interpret this transition as a consequence of the breakdown of the charge-ordered state triggered by applied electric field, which is supported by the dramatic dielectric response in a small electric field. This colossal electroresistance effect as well as the high dielectric tunability around room temperature in low applied fields makes LuFe2O4 a very promising material for many applications.
dc.description11 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0805.4042
dc.identifierhttp://arxiv.org/abs/0805.4042
dc.identifierAppl. Phys. Lett. 93, 152103 (2008).
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/180045
dc.subjectMaterials Science
dc.subjectStrongly Correlated Electrons
dc.titleColossal electroresistance effect around room temperature in LuFe2O4
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