dc.contributor.author | SHVETS, IGOR | en |
dc.date.accessioned | 2010-07-14T10:18:05Z | |
dc.date.available | 2010-07-14T10:18:05Z | |
dc.date.issued | 2010 | en |
dc.date.submitted | 2010 | en |
dc.identifier.citation | A. A. Fursina, R. G. S. Sofin, I. V. Shvets, D. Natelson, Interplay of bulk and interface effects in the electric-field-driven transition in magnetite, Physical Review B, 81, 4, 2010, 045123- | en |
dc.identifier.other | Y | en |
dc.identifier.uri | http://hdl.handle.net/2262/40312 | |
dc.description | PUBLISHED | en |
dc.description.abstract | Contact effects in devices incorporating strongly correlated electronic materials are comparatively unexplored.
We have investigated the electrically driven phase transition in magnetite 100 thin films by fourterminal
methods. In the lateral configuration, the channel length is less than 2 m, and voltage-probe wires
100 nm in width are directly patterned within the channel. Multilead measurements quantitatively separate
the contributions of each electrode interface and the magnetite channel.We demonstrate that on the onset of the
transition contact resistances at both source and drain electrodes and the resistance of magnetite channel
decrease abruptly. Temperature-dependent electrical measurements below the Verwey temperature indicate
thermally activated transport over the charge gap. The behavior of the magnetite system at a transition point is
consistent with a theoretically predicted transition mechanism of charge gap closure by electric field. | en |
dc.description.sponsorship | This work was supported by the U.S. Department of
Energy under Grant No. DE-FG02-06ER46337. D.N. also
acknowledges the David and Lucille Packard Foundation and
the Research Corporation. R.G.S.S. and I.V.S. acknowledge
the Science Foundation of Ireland under Grant No. 06/IN.1/
I91. | en |
dc.format.extent | 045123 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Physical Review B | en |
dc.relation.ispartofseries | 81 | en |
dc.relation.ispartofseries | 4 | en |
dc.rights | Y | en |
dc.subject | Atomic, molecular and chemical physics | en |
dc.subject | magnetite channel | en |
dc.title | Interplay of bulk and interface effects in the electric-field-driven transition in magnetite | en |
dc.type | Journal Article | en |
dc.contributor.sponsor | Science Foundation Ireland (SFI) | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/ivchvets | en |
dc.identifier.rssinternalid | 64263 | en |
dc.identifier.doi | http://dx.doi.org/10.1103/PhysRevB.81.045123 | en |
dc.subject.TCDTheme | Nanoscience & Materials | en |
dc.identifier.rssuri | http://link.aps.org/doi/10.1103/PhysRevB.81.045123 | en |