Phase separation and magnetoresistance in random-field magnetic polaron systems

Sh Dong, H. Yu, K. F. Wang, X. Y. Yao, J. M. Liu*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


The phase separation and magnetoresistive effect of small magnetic polaron systems is studied in a random-field Ising model. The ferromagnetic/paramagnetic (FM/PM) phase separation phenomenon appears when a random-field is applied on a spin lattice. Based on the phase separation picture, the conductance by an electron tunneling mechanism is simulated. The resistivity and magnetoresistance are calculated and analysed. The physics of metal-insulator transition due to the intrinsically spatial inhomogeneities in magnetic polaron systems is discussed.

Original languageEnglish
Pages (from-to)168-174
Number of pages7
JournalComputational Materials Science
Issue number1-3
Publication statusPublished - Apr 2005
Externally publishedYes
EventProceedings of the E-MRS 2004 Spring Meeting: Symposium H: Atomic Materials Design: Modelling and Characterization -
Duration: 24 May 200428 May 2004


  • Magnetic polaron tunneling
  • Magnetoresistive effect
  • Phase separation


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