Effect of interface roughness on perpendicular magnetic anisotropy of Fe/Tb multilayers

Amitesh Paul*, Ajay Gupta, Prasanna Shah, K. Kawaguchi, G. Principi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Fe/Tb multilayers have been prepared which exhibit significant perpendicular magnetic anisotropy (PMA) even at RT. The effect of systematic variation in the interface roughness on PMA has been studied in these multilayers which were deposited simultaneously on a set of float glass substrates prepared with varying root mean square surface roughness. The amount of intermixing at the interfaces and uncorrelated part of the interface roughness of different multilayers remain similar, thus allowing one to separate out the effect of the correlated interface roughness only. X-ray reflectivity and conversion electron Mössbauer spectroscopy and SQUID magnetometry was used to characterise the systems. PMA was found to depend weakly on the correlated interface roughness.

Original languageEnglish
Pages (from-to)205-213
Number of pages9
JournalHyperfine Interactions
Volume139-140
Issue number1-4
DOIs
StatePublished - 2002
Externally publishedYes

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