Giant Resistance Switching Effect for a Nano-Crystalline La0.65Ca0.35MnO3 Film in the Charge-Ordered State
The magnetic and the transport properties of a 20-nm-scale twinned La0:65Ca0:35MnO3 lm have been investigated in a temperature range of 77 - 300 K. The coexistence of ferromagnetic metallic and charge-ordered insulating phases is suggested by the temperature and the current dependences of the resist...
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| Veröffentlicht in: | Journal of the Korean Physical Society 2003, 42(3), , pp.309-312 |
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| Hauptverfasser: | , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | The magnetic and the transport properties of a 20-nm-scale twinned La0:65Ca0:35MnO3 lm have
been investigated in a temperature range of 77 - 300 K. The coexistence of ferromagnetic metallic
and charge-ordered insulating phases is suggested by the temperature and the current dependences
of the resistance at low temperatures. It is shown that thermocycling leads to the formation of a
nonequilibrium state in the ensemble of charge-ordered domains and to the appearance of a giant
switching in resistance up to 100 %. The experimental results are discussed on the basis of phase
separation. KCI Citation Count: 16 |
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| ISSN: | 0374-4884 1976-8524 |