EPJ Web of Conferences (Jan 2013)

Magnetic Properties of La0.9Ag0.1(Mn1-xCox)O3 under Pressure

  • Mihalik M.,
  • Mihalik M.,
  • Gritzner G.,
  • Kamarád J.,
  • Arnold Z.,
  • Antoňák M.,
  • Zentková M.

DOI
https://doi.org/10.1051/epjconf/20134015003
Journal volume & issue
Vol. 40
p. 15003

Abstract

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In our paper we report on magnetic properties of La0.90Ag0.10(CoxMn1-x)O3 ferromagnetic ceramics (x = 0.00 and0.03) which were studied in pressures up to 0.9 GPa. Magnetic transition at the Curie temperature TC is accompanied with metal insulator transition with a maximum at T* which is shifted to lower temperature with applied magnetic field. The Curie temperature is decreasing with substitution of Co for Mn and is ranging from 178 K to 126.5 K. Hydrostatic pressure increases TC for sample with x = 0.03 nearly linearly with the pressure coefficient dTc/dp = 5.7 K/GPa. Hysteresis loop is affected marginally; µs increases and Hc decreases with pressure.