Magnetic properties of crystalline and amorphous phase-change materials doped with 3d impurities.
basic_science · Level V
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- Record sourced from PubMed, PMID 22753225.
- Also identified by DOI 10.1002/adma.201201507.
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Abstract
First-principles study of the structural and magnetic properties of cubic and amorphous phase-change materials doped with 3d impurities. We find that Co- and Ni-doped Ge(2) Sb(2) Te(5) is non-magnetic, whereas Cr- and Mn-doped Ge(2) Sb(2) Te(5) is magnetic and exhibits a significant magnetic contrast between the two phases in the ferromagnetic configuration. These results are explained in terms of differences in local structure and hybridization of the impurity d-orbitals with the host states.
Medical subject headings
- Antimony
- Germanium
- Magnetics
- Manufactured Materials
- Tellurium