Abstract
Correlation between orbital structure and magnetic ordering in layered manganites is examined. A level separation between the 3d3z2-r2 and 3dx2-y2 orbitals in a Mn ion is calculated in the ionic model for a large number of the compounds. It is found that the relative stability of the orbitals dominates the magnetic transition temperatures as well as the magnetic structures at zero temperature. A mechanism of the correlation between orbital and magnetism is explained by a theory based on the model with the two eg orbitals under strong electron correlation.
Original language | English |
---|---|
Article number | 104401 |
Pages (from-to) | 1044011-1044016 |
Number of pages | 6 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 63 |
Issue number | 10 |
State | Published - 2001 |
Externally published | Yes |