Origin of hysteresis in resistive switching in magnetite is Joule heating

A. A. Fursina, R. G S Sofin, I. V. Shvets, D. Natelson

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

In many transition-metal oxides the electrical resistance is observed to undergo dramatic changes induced by large biases. In magnetite, Fe3 O4, below the Verwey temperature, an electric-field-driven transition to a state of lower resistance was recently found, with hysteretic current-voltage response. We report the results of pulsed electrical conduction measurements in epitaxial magnetite thin films. We show that while the high- to low-resistance transition is driven by electric field, the hysteresis observed in I-V curves results from Joule heating in the low-resistance state. The shape of the hysteresis loop depends on pulse parameters and reduces to a hysteresis-free "jump" of the current provided thermal relaxation is rapid compared to the time between voltage pulses. A simple relaxation-time thermal model is proposed that captures the essentials of the hysteresis mechanism.

Original languageEnglish
Article number245131
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number24
DOIs
Publication statusPublished - Jun 26 2009

Fingerprint

Ferrosoferric Oxide
Joule heating
Magnetite
magnetite
Hysteresis
low resistance
hysteresis
Electric fields
Acoustic impedance
Electric potential
Hysteresis loops
Relaxation time
Oxides
Transition metals
electric fields
convective flow
electric potential
electrical resistance
pulses
metal oxides

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Origin of hysteresis in resistive switching in magnetite is Joule heating. / Fursina, A. A.; Sofin, R. G S; Shvets, I. V.; Natelson, D.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 79, No. 24, 245131, 26.06.2009.

Research output: Contribution to journalArticle

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