English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse
  1. View item / 
  2. Item Summary

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Magnetoresistivity in CoFe2O4-BaTiO3 composites produced by spark plasma sintering

MPS-Authors
/persons/resource/persons280185

Kremer,  R. K.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons280221

Lemmens,  P.
Department Solid State Spectroscopy (Bernhard Keimer), Max Planck Institute for Solid State Research, Max Planck Society;

/persons/resource/persons280100

Johnsson,  M.
Former Scientific Facilities, Max Planck Institute for Solid State Research, Max Planck Society;
Former Departments, Max Planck Institute for Solid State Research, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Stingaciu, M., Kremer, R. K., Lemmens, P., & Johnsson, M. (2011). Magnetoresistivity in CoFe2O4-BaTiO3 composites produced by spark plasma sintering. Journal of Applied Physics, 110(4): 044903.


Cite as: https://hdl.handle.net/21.11116/0000-000E-C1A9-9
Abstract
Ceramic composites of (CoFe(2)O(4))(x)-(BaTiO(3))((1-x)) with x = 0.20, 0.25, and 0.30 have been synthesized by spark plasma sintering at 1000 degrees C under a uniaxial pressure of 75 MPa using commercially available nanopowders as starting materials. The composites reveal a negative magnetoresistivity effect of about -1% at room temperature. An enhancement was observed at lower temperatures, and an effect of -4.1% was found in the composite with x 0.30 at 150 K by applying an external magnetic field of 25 kOe. The temperature dependence of the resistivity indicates variable range hopping involved in charge transport. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622584]