| Issue |
J. Phys. IV France
Volume 07, Number C1, Mars 1997
7th INTERNATIONAL CONFERENCE ON FERRITES
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|---|---|---|
| Page(s) | C1-367 - C1-368 | |
| DOI | https://doi.org/10.1051/jp4:19971150 | |
7th INTERNATIONAL CONFERENCE ON FERRITES
J. Phys. IV France 07 (1997) C1-367-C1-368
DOI: 10.1051/jp4:19971150
Department of Physics, Teikyo University, 1-1 Toyosatodai, Utsunomiya 320, Japan
© EDP Sciences 1997
J. Phys. IV France 07 (1997) C1-367-C1-368
DOI: 10.1051/jp4:19971150
Several New Data on the Electrical Conduction and Magnetism of Highly Oxidized SrCoOx (2.46≤x≤2.80)
S. Nakamura, Y. Tadokoro and S. IidaDepartment of Physics, Teikyo University, 1-1 Toyosatodai, Utsunomiya 320, Japan
Abstract
The electrical conduction and magnetic properties of highly oxidized polycrystalline SrCoOx (2.46≤x≤2.80) were measured down to 10 K. Unlike the previous reports, the temperature coefficient, dp/dT, of all the specimens are negative. From the magnetic and electrical properties of high temperature phase system (orthorhombic-tetragonal ; pseudo-perovskite), the transition from localized nature to band character is suggested for the 3d electmns. The tetragonal phases are ferromagnetic. But the low temperature phases are paramagnetic. There may be a correlation between the conductivity and the local ordering of the magnetic spins below around 100 K.
© EDP Sciences 1997