dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade Federal Fluminense (UFF) | |
dc.contributor | Universidade Federal do Rio de Janeiro (UFRJ) | |
dc.contributor | Rua Dr. Xavier Sigaud | |
dc.date.accessioned | 2018-12-11T17:11:37Z | |
dc.date.available | 2018-12-11T17:11:37Z | |
dc.date.created | 2018-12-11T17:11:37Z | |
dc.date.issued | 2017-04-10 | |
dc.identifier | Journal of Physics Condensed Matter, v. 29, n. 20, 2017. | |
dc.identifier | 1361-648X | |
dc.identifier | 0953-8984 | |
dc.identifier | http://hdl.handle.net/11449/174541 | |
dc.identifier | 10.1088/1361-648X/aa6960 | |
dc.identifier | 2-s2.0-85018935834 | |
dc.identifier | 2-s2.0-85018935834.pdf | |
dc.description.abstract | The oxyborate Fe3O2BO3 presents a charge density wave (CDW) transition close to room temperature. As we show here, this is associated with a well defined anomaly in the specific heat. Below this transition, when applying in a single crystal of Fe3O2BO3 a DC voltage above a temperature dependent threshold, a high current is liberated in this material. We study the conduction in single crystals of Fe3O2BO3 with voltage applied parallel and perpendicular to the crystallographic c axis direction. The observed currents are attributed to the depinning of charge ordered domains above a threshold voltage V T2 that gives rise to a collective conduction due to coherent domains. Compliance limited DC data shows that above a lower threshold voltage depinning is smooth and follows a power law scaling. Similar depinning with power law scaling is also revealed in the AC conductivity. | |
dc.language | eng | |
dc.relation | Journal of Physics Condensed Matter | |
dc.relation | 0,875 | |
dc.rights | Acesso aberto | |
dc.source | Scopus | |
dc.subject | charge density wave | |
dc.subject | charge ordering | |
dc.subject | non-linear conductance | |
dc.subject | oxyborates | |
dc.subject | structural phase transition | |
dc.subject | transition metal oxides | |
dc.title | Non-linear conduction due to depinning of charge order domains in Fe3O2BO3 | |
dc.type | Artículos de revistas | |