Abstract
Impurity effects on the lattice structure and the electronic state are investigated for B-site substituted half-doped manganites Nd 1/2Ca1/2(Mn0.95M0.05)O3 (M is the 3d and 4d transition metals). We investigated the interrelation between the impurity-induced ferromagnetism and (1) the lattice structure (chemical pressure effect), (2) the magnitude of the impurity spin, and (3) the density of state (DOS) of the impurity d state at the Fermi level EF. We found a strong correlation between the ferromagnetism and the DOS of the impurity state at EF, suggesting that the ferromagnetism can be ascribed to the enhanced one-electron bandwidth of the Mn 3d-M d hybridized band.
| Original language | English |
|---|---|
| Article number | 212407 |
| Pages (from-to) | 212407-1-212407-4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 69 |
| Issue number | 21 |
| DOIs | |
| Publication status | Published - 2004 Jun 1 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Moritomo, Y., Murakami, K., Ishikawa, H., Hanawa, M., Nakamura, A., & Ohoyama, K. (2004). Impurity-induced ferromagnetism and impurity states in Nd 1/2(Mn0.95M0.05)O3. Physical Review B - Condensed Matter and Materials Physics, 69(21), 212407-1-212407-4. [212407]. https://doi.org/10.1103/PhysRevB.69.212407