Abstract
The magnetic and the transport properties of a 20-nrn-scale twinned La0.65Ca0.35MnO3 film 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.
Original language | English |
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Pages (from-to) | L309-L312 |
Journal | Journal of the Korean Physical Society |
Volume | 42 |
Issue number | 3 |
State | Published - Mar 2003 |
Keywords
- Giant resistance switching
- LaCaMnO film