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Magnetoelastic properties of Co/Pd nanomultilayer films
Author(s) -
Jeong JongRyul,
Shin SungChul
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200304553
Subject(s) - materials science , deposition (geology) , stress (linguistics) , ultimate tensile strength , strain (injury) , composite material , layer (electronics) , constant (computer programming) , thin film , nanotechnology , medicine , paleontology , philosophy , linguistics , sediment , computer science , biology , programming language
The magnetoelastic properties of (6 Å Co/20 Å Pd) 6 nanomultilayer films have been investigated using an ultrahigh vacuum (UHV) in situ stress and magnetoelastic coupling (MEC) constant measurement system. In situ stress measurement reveals that stress existing in the Pd sublayers is tensile up to the second Pd sublayer deposition and it gradually changes to compressive after the deposition of the third Pd sublayer. Interestingly, the MEC constant of the Co/Pd nanomultilayer continuously increases with increasing Pd layer thickness from 0 to 20 Å in the sixth Pd sublayer. It is found that the evolution of the MEC constant is intimately related with the film strain rather than interface formation, and second‐order strain correction is necessary to describe the dependence of the MEC constant on the Pd thickness. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)