Investigation of (Fe/Dy) multilayers by 57Fe Mössbauer spectrometry

Tamion, Alexandre; Bordel, C.

doi:10.1016/j.jmmm.2007.01.013

Cited by 3 publications

(1 citation statement)

References 39 publications

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“…There is the clear EXAFS evidence for a neighbourhood change around Fe in this sample establishing some Fe/Dy intermixing within the shell of the nanoparticles. Tamion et al, [17] point out that for the thinner Fe layers in Fe/Dy multilayer samples the Fe/Dy interdiffusion produces an amorphous alloy, which, depending on the composition, might be paramagnetic at room temperature or just above. Moreover such an alloy is well known to exhibit perpendicular interface anisotropy.…”

Section: Magnetic Behaviour Of Dy Films Containing Fe As Atoms or Nanmentioning

confidence: 99%

Ferromagnetism of Dy films containing embedded Fe atoms and nanoparticles

Iles

Binns

Baker

et al. 2010

Journal of Magnetism and Magnetic Materials

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Section: Magnetic Behaviour Of Dy Films Containing Fe As Atoms or Nanmentioning

confidence: 99%

Ferromagnetism of Dy films containing embedded Fe atoms and nanoparticles

Iles

Binns

Baker

et al. 2010

Journal of Magnetism and Magnetic Materials

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Room-temperature ferromagnetism in Dy films doped with Ni

Édelman

Овчинников

Марков

et al. 2008

Physica B: Condensed Matter

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Effect of separated layer thickness on magnetoresistance and magnetic properties of Co/Dy/Co and Ni/Dy/Ni film systems

Shabelnyk

Shutylieva

Vorobiov

et al. 2018

Int. J. Mod. Phys. B

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Co(5 nm)/Dy(t[Formula: see text])/Co(20 nm)/S and Ni(5 nm)/Dy(t[Formula: see text])/Ni(20 nm)/S trilayer films are prepared by electron-beam sputtering to investigate the influence of dysprosium layer thickness (t[Formula: see text]) and thermal annealing on the crystal structure, magnetoresistance (MR) and magnetic properties of thin films. The thickness of Dy layer changed in the range from 1 nm to 20 nm. The samples annealed for 20 min at 700 K. Electron diffraction patterns reveal that the as-deposited and annealed systems Co/Dy/Co and Ni/Dy/Ni had fcc-Co + hcp-Dy and fcc-Ni + hcp-Dy phase state, respectively. It is also shown that at the t[Formula: see text] = 15 nm the transition from amorphous to crystalline structures of Dy layer is observed. An increase in the Dy layer thickness results in changes in the MR and magnetic properties of the trilayer systems. It is shown that MR is most thermally stable against annealing to 700 K at t[Formula: see text] = 15 nm for Co/Dy/Co as well as for Ni/Dy/Ni. For t[Formula: see text] = 15 nm the, value of MR for both system increases by two times compared to those of pure ferromagnetic (FM) samples. The coercivity (B[Formula: see text]), remanent (M[Formula: see text]) and saturation (M[Formula: see text]) magnetization of the in-plain magnetization hysteresis loops are related to the Dy layer thickness too. The coercivity depends on the FM materials type and diffusion processes at the layer boundary. Accordingly, M[Formula: see text] and M[Formula: see text] are reduced with t[Formula: see text] increasing before and after annealing for both trilayer systems.

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Investigation of (Fe/Dy) multilayers by 57Fe Mössbauer spectrometry

Cited by 3 publications

References 39 publications

Ferromagnetism of Dy films containing embedded Fe atoms and nanoparticles

Ferromagnetism of Dy films containing embedded Fe atoms and nanoparticles

Room-temperature ferromagnetism in Dy films doped with Ni

Effect of separated layer thickness on magnetoresistance and magnetic properties of Co/Dy/Co and Ni/Dy/Ni film systems

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