Abstract
Impurity effects on Nax CoO2 · y H2 O are studied by Mn doping. Spectroscopic evidence reveals that the doped Mn ions occupy the Co sites and the valence is + 4. The magnetic local moment induced by Mn doping was observed and μeff = 3.20 μB. The induced local moment could lead to magnetic pair-breaking and is likely to be responsible for the Tc suppression by Mn impurities in Nax Co1 - z Mnz O2 · y H2 O.
Original language | English |
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Pages (from-to) | E132-E133 |
Number of pages | 2 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 310 |
Issue number | 2 SUPPL. PART 1 |
DOIs | |
State | Published - 1 Mar 2007 |
Keywords
- Cobaltate
- Impurity effect
- Magnetic moment
- Superconducting order parameter