Evidence of magnetoelastic coupling in NixTi1−x/Ni and NixTi1−x/Co heterostructures grown on Si (1 0 0)

Evidence of magnetoelastic coupling in NixTi1−x/Ni and NixTi1−x/Co heterostructures grown on Si (1 0 0)

•Anomalous enhancement in the magnetization with temperature is observed for NiTi/Ni.•A fast decrease in the coercivity is found where the magnetoelastic coupling occurs.•Tensile stress from NiTi alloy induces easy axis of magnetization in Ni and Co layer.•The largest response is obtained for NiTi w...

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Veröffentlicht in:Journal of magnetism and magnetic materials 2019-04, Vol.475, p.772-777
Hauptverfasser: Torres, Diana L., Suzuki, Paulo A., Cornejo, Daniel R.
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropy
Coercivity
Coupling
Ferromagnetism
Heterostructures
Interfacial stresses
Inverse magnetostrictive effect
Magnetic films
Magnetic measurement
Magnetic moments
Magnetic properties
Magnetism
Magnetoelastic coupling
Nickel compounds
NiTi shape memory alloy
Phase transitions
Silicon substrates
Structural phase transition
Superconducting quantum interference devices
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Beschreibung
Zusammenfassung:•Anomalous enhancement in the magnetization with temperature is observed for NiTi/Ni.•A fast decrease in the coercivity is found where the magnetoelastic coupling occurs.•Tensile stress from NiTi alloy induces easy axis of magnetization in Ni and Co layer.•The largest response is obtained for NiTi with high percentage of martensite phase. Novel heterostructures of NixTi1−x/Ni and NixTi1−x/Co, with 0.48 
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2018.10.017