Magnetic and transport properties of Ni doped Pr0.5Ca 0.5Mn1.xNixO3-8 manganites

L. Damari, J. Pelleg, G. Gorodetsky, C. Korn, V. Markovich, A. Shames, X. Wu, D. Mogilyansky, I. Fita

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


Structural, magnetic and transport properties of Pro0.5Ca 0.5MnO1-xNixO3 (x =0, 0.04, 007, 0.1) series have been investigated. The substitution of Mn ions by Ni induces drastic changes in the magneto-transport properties of Pr0.5Ca 0.5MnO3. The physical behavior depends drastically on O stoichiometry. For the low Ni doping x=0.04. 0.07. spin glass configuration is rather favored than ferromagnetism: while for x=O.l0. the ferromagnetic phase is significantly suppressed. Pronounced irreversibility between zero- field cooled (ZFC) and field cooled (FC) magnetization and a kink in the ZFC curve observed for x=0.04 and 0.07 are indicative of spin-glass-like state. Applied hydrostatic pressure of about 10 kbar reduces the temperature of charge ordering in an x=0 sample by about 10 K indicating a pressure induced suppression of the Jahn-Teller distortions and of the electron-phonon coupling. Electron magnetic resonance (EMR) unambiguously evidences appearance of FM phase in Ni doped manganites. Temperature dependence of EMR spectra parameters allow us to speculate on the effect of magnetic inhomogeneities.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings - Magnetic Nanostructures by Design
Number of pages6
StatePublished - 1 Dec 2008
EventMagnetic Nanostructures by Design - Boston, MA, United States
Duration: 1 Dec 20085 Dec 2008

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


ConferenceMagnetic Nanostructures by Design
Country/TerritoryUnited States
CityBoston, MA

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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