Observation of resistance switching between insulating and metallic states in nano-crystalline La0.65Ca0.35MnO3 film
The magnetic and transport properties of a 20-nm-scale twinned La0.65Ca0.35MnO3 film have been investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic (FM) and charge-ordered insulating (COI) phases is suggested based on analysis of resistance temperature and curre...
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| Veröffentlicht in: | Physica. B, Condensed matter Condensed matter, 2003-07, Vol.334 (3-4), p.403-407 |
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| container_issue | 3-4 |
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| container_title | Physica. B, Condensed matter |
| container_volume | 334 |
| creator | PROKHOROV, V. G KAMINSKY, G. G KOMASHKO, V. A LEE, Y. P KRAVCHENKO, I. I |
| description | The magnetic and transport properties of a 20-nm-scale twinned La0.65Ca0.35MnO3 film have been investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic (FM) and charge-ordered insulating (COI) phases is suggested based on analysis of resistance temperature and current dependencies at low temperatures. It is shown that thermocycling leads to formation of a non-equilibrium state in the ensemble of the charge-ordered domains and to appearance of a giant (up to 100%) resistance switching between MF and COI states. The experimental results are discussed from the viewpoint of the phase separation phenomenon. |
| doi_str_mv | 10.1016/S0921-4526(03)00105-4 |
| format | Article |
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| subjects | Colossal magnetoresistance Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic properties and materials Magnetotransport phenomena, materials for magnetotransport Physics |
| title | Observation of resistance switching between insulating and metallic states in nano-crystalline La0.65Ca0.35MnO3 film |
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