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Investigate the origins and structural mechanisms governing perpendicular magnetic anisotropy in ultrathin Pd/Co and Pt/Co layered structures.

May 15, 1988Journal of Applied Physics

Perpendicular magnetic anisotropy in Pd/Co and Pt/Co thin-film layered structures

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PCP. F. CarciaPennsylvania State University

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Implication

Experimental study reveals distinct mechanisms of perpendicular magnetic anisotropy in Pd/Co and Pt/Co films, indicating that interface sharpness controls magnetic orientation.

Key Points

Investigate the origins and structural mechanisms governing perpendicular magnetic anisotropy in ultrathin Pd/Co and Pt/Co layered structures.
Fabricated Pd/Co and Pt/Co layered thin films via radio-frequency (rf) sputtering with varying cobalt layer thicknesses (<8 Å for Pd/Co and <14 Å for Pt/Co).
Characterized magnetic and structural interfaces using magnetization measurements, electrical resistivity, and x-ray diffraction.
Perpendicular magnetic anisotropy occurs in Pd/Co when cobalt thickness is <8 Å, with anisotropy energy scaling linearly (Ku ~ T) and effective anisotropy field scaling inversely (HK ~ 1/T), demonstrating an interfacial origin.
Anisotropy in Pt/Co occurs when cobalt thickness is <14 Å but remains independent of cobalt thickness, indicating a distinct physical mechanism from Pd/Co.
Magnetization, resistivity, and x-ray diffraction measurements confirm that Pd/Co layered structures exhibit sharper compositional interfaces than Pt/Co layered structures.

Cite This Study

P. F. Carcia (1988) studied this question.

synapsesocial.com/papers/6a700cc522b3175134db4b54 https://doi.org/10.1063/1.340404

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Implication

Experimental study reveals distinct mechanisms of perpendicular magnetic anisotropy in Pd/Co and Pt/Co films, indicating that interface sharpness controls magnetic orientation.

Perpendicular magnetic anisotropy in Pd/Co and Pt/Co thin-film layered structures

Discussion

Member takes

Implication

Key Points

Cite This Study

Perpendicular magnetic anisotropy in Pd/Co and Pt/Co thin-film layered structures

Discussion

Member takes

Implication

Key Points

Cite This Study

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