Magnetization and ferromagnetic resonance studies in Co/V multilayers

Lassri, M.; Omri, M.; Ouahmane, H.; Abid, M.; Ayadi, Mohamed; Krishnan, R.

doi:10.1016/j.physb.2003.10.011

Cited by 16 publications

(8 citation statements)

References 18 publications

(18 reference statements)

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“…In the case of a multilayer the 0925-8388/$ -see front matter © 2004 Elsevier B.V. All rights reserved. doi:10.1016/j.jallcom.2004.11.010 thermal variation of the magnetization and the Curie temperature is also affected by the interlayer exchange coupling [7,8]. Furthermore, interdiffusion causing graded interfaces and disorder resulting in a distribution of exchange interactions, can play an important role.…”

Section: Introductionmentioning

confidence: 99%

Exchange interactions in Fe/Y multilayers

Elkabil

Elkaidi

Annouar

et al. 2005

Journal of Alloys and Compounds

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Section: Introductionmentioning

confidence: 99%

Exchange interactions in Fe/Y multilayers

Elkabil

Elkaidi

Annouar

et al. 2005

Journal of Alloys and Compounds

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“…The interface anisotropy strongly affects the thickness dependence of the magnetization. The linear relation between the spin-wave parameter B and the reciprocal of the magnetic film thickness was reported for Co/V, Ni/Pt multilayers [56,57] and Fe(110) films on W(110) [58,59].…”

Section: Resultsmentioning

confidence: 81%

“…For the Ising and XY models, we considered the new values of [α l ] by using the transformation [56] depending only on the dimension ν of the spin (ν = 1 for Ising type, ν = 2 for XY type and ν = 3 for Heisenberg type).…”

Section: High-temperature Series Expansionsmentioning

confidence: 99%

Experiment and Theoretical Study of Critical Behavior in Magnetic Multilayers

Masrour

Hamedoun

Benyoussef

et al. 2012

J Supercond Nov Magn

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Ni/NM multilayers (with noble metal NM = Au, Ag and Cu) were prepared by the electron beam evaporation method under ultra high vacuum conditions. The magnetic properties of Ni/NM multilayers are examined as a function of Ni layer thickness t Ni . The temperature dependence of the spontaneous magnetization M(T ) is well described by a T 3/2 law in all multilayers. A spin-wave theory has been used to explain the temperature dependence of the magnetization and the approximate values for the bulk Exchange interaction J b and surface exchange interaction J s for various Ni layer thicknesses have been obtained.In the other hand we have used the high-temperature series expansion technique, to analyze the phase transition and the critical phenomena of a ferromagnetic a two-component multilayer, through three models: Ising, XY and Heisenberg. The critical reduced temperature τ c (ν) is studied as function of the thickness of constituents in the unit cell of the mul-R. Masrour ( ) Laboratory of Materials, Processes, Environment and Quality, tilayer. In the two-component multilayer τ c (ν) is studied as function of the exchange interaction in each material and within the interface J s , J b and J ⊥ , respectively. A critical value of the surface exchange interaction in the film and interface exchange interaction in the multilayer above which the surface and the interface magnetism appears is obtained. The dependence of the reduced critical temperature on the thickness of the film and the unit cell of multilayer has been investigated. The effects of an amorphous magnetic surface on the critical properties of the film of simple cubic lattice have been studied. A number of characteristic behaviors, such as the possibility of the existence of a critical length of the unit cell thickness at which the temperature of the multilayer remains insensitive to the exchange coupling within interface, are reported.In a defined range of the exchange interactions, the values of γ are comparable to the universal ones and are independent of the film thickness. The asymmetry of the structure and the competition of the effects of the exchange coupling are important for the magnetic properties of the system.

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“…The surface anisotropy strongly affects the thickness dependence of the magnetization. The linear relation between the spin-wave parameter B and the reciprocal of the magnetic film thickness was reported for Co/V multilayers [9] and Fe(1 1 0) films on W(1 1 0) [8,10]. The apparent universality of Bloch's T 3/2 -law for the temperature dependence of the spontaneous magnetization, and of generalization thereof, is considered by Kray [11].…”

Section: Resultsmentioning

confidence: 99%