Time dependent effects and transport evidence for phase separation in La0.5Ca0.5MnO3

M. Roy, J. F. Mitchell, P. Schiffer

Research output: Contribution to journalConference articlepeer-review

28 Scopus citations


The ground state of La1-xCaxMnO3 changes from a ferromagnetic metallic to an antiferromagnetic charge-ordered state as a function of Ca concentration at x∼0.50. We present evidence from transport measurements on a sample with x=0.50 that the two phases can coexist, in agreement with other observations of phase separation in these materials. We also observe that, by applying and then removing a magnetic field to the mainly charge-ordered state at some temperatures, we can "magnetically anneal" the charge order, resulting in a higher zero-field resistivity. We also observe logarithmic time dependence in both resistivity and magnetization after a field sweep at low temperatures.

Original languageEnglish (US)
Pages (from-to)5831-5833
Number of pages3
JournalJournal of Applied Physics
Issue number9 II
StatePublished - May 2000
Externally publishedYes
Event44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States
Duration: Nov 15 1999Nov 18 1999

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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