Manganese Deficiency in MnSi Single Crystal and Skyrmion Pinning

Manganese Deficiency in MnSi Single Crystal and Skyrmion Pinning

The dc magnetization and ac spin susceptibility measurement results of MnxSi single crystals with x ≈ 0.96-1 are reported. Magnetic phase diagrams for Mn x Si of different Mn deficiency levels are mapped and compared. We provide strong evidence that the existence of manganese deficiency is common in...

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Veröffentlicht in:IEEE transactions on magnetics 2014-11, Vol.50 (11), p.1-4
Hauptverfasser: Ou-Yang, T. Y., Shu, G. J., Hu, C. D., Chou, F. C.
Format: Artikel
Sprache:eng
Schlagworte:
Crystals
Lattices
Magnetic susceptibility
Magnetism
Manganese
Perpendicular magnetic anisotropy
Silicon
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Zusammenfassung:The dc magnetization and ac spin susceptibility measurement results of MnxSi single crystals with x ≈ 0.96-1 are reported. Magnetic phase diagrams for Mn x Si of different Mn deficiency levels are mapped and compared. We provide strong evidence that the existence of manganese deficiency is common in the MnSi single crystals due to the high Mn vapor loss during growth, and the Mn deficiencies could be used as pinning centers to stabilize the Skyrmion phase within the magnetic field-temperature phase space.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2014.2322603