Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2002-05-25
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages, 6 figures
Scientific paper
10.1103/PhysRevLett.89.216403
We introduce a path to a possibly new class of magnetic materials whose properties are determined entirely by the presence of a low concentration of specific point defects in their crystal structure. Using model Hamiltonian and ab-initio band structure methods we demonstrate that even large band gap nonmagnetic materials as simple as CaO can exhibit extraordinary properties like half metallic ferromagnetism upon introducing a small concentration of Ca vacancies. We show that such defects will initially bind the introduced charge carriers at neighboring sites and depending on the internal symmetry of the clusters formed by neighboring sites form "local" magnetic moments which for concentrations as low as 3% transform this non-magnetic insulator into a half metallic ferromagnet.
Elfimov I. S.
Sawatzky George. A.
Yunoki Seiji
No associations
LandOfFree
A possible path to a new class of ferromagnetic and half metallic ferromagnetic materials does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A possible path to a new class of ferromagnetic and half metallic ferromagnetic materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A possible path to a new class of ferromagnetic and half metallic ferromagnetic materials will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-361276