Abstract
Magnetic and transport properties of Pr0.8Ca 0.2MnO3 crystal have been studied. It was found that the magnetic anisotropy in (1 0 0) plane increases with decreasing temperature and increasing pressure. The resistivity for T > 140 K obeys Arrhenius law with an activation energy Ea = 130 meV, while at T> 130 K, E a = 62 meV. The magnetoresistance maximizes near the Curie temperature of Mn moments TC1 = 130K. The dynamic resistivity shows a marked dependence on a bias current I at T < TC1. The results are discussed in the frame of magnetic phase separation and spin-density wave scenario.
Original language | English |
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Pages (from-to) | 1792-1793 |
Number of pages | 2 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 272-276 |
Issue number | III |
DOIs | |
State | Published - 1 Jan 2004 |
Keywords
- Anisotropy
- Hydrostatic pressure
- Magnetoresistance
- Orbital ordering
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics