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Czasopismo
2006 | 4 | 3 | 331-340
Tytuł artykułu

Simulating a perpendicular exchange-biased structure with a partially covering nonmagnetic insertion at the FM/AFM interface

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The existence of minority spins, opposite to the perpendicular exchange bias, and majority spins aligned with this bias, and the dependence of the perpendicular exchange-bias field on the imprint effect, caused by the partially covering spacer at the ferromagnetic/antiferromagnetic (FM/AFM) interface, have been studied using Ising-type simulations. The present investigation suggests that the main factors influencing this phenomenon were dependent on the FM/AFM interface morphology, the balance between FM/AFM coupling and the FM-spins coupling, and the numerical balance between minority and majority spins. It was also determined that the imprint phenomenon can be used to enhance the perpendicular exchange-bias for small partial insertions at the FM/AFM interface.
Wydawca

Czasopismo
Rocznik
Tom
4
Numer
3
Strony
331-340
Opis fizyczny
Daty
wydano
2006-09-01
online
2006-09-01
Twórcy
  • Department of Electron Technology, Institute of Physics, Silesian University of Technology, 44-100, Gliwice, Poland, Tomasz.Blachowicz@polsl.pl
Bibliografia
  • [1] S. van Dijken, M. Zołądź, M. Czapkiewicz and T. Stobiecki: “Asymmetric magnetization reversal in exchange-biased Co/Pt multilayers”, Phys. Stat. Solid. B, Vol. 243, (2006), pp. 169–173. http://dx.doi.org/10.1002/pssb.200562498[Crossref]
  • [2] K. Tanahashi, A. Kikukawa, N. Shimizu and Y. Hosoe: “Reduction of spike noise in perpendicular recording media by using MnIr antiferromagnetic films”, J. Appl. Phys., Vol. 91, (2002), pp. 8049–8051. http://dx.doi.org/10.1063/1.1454981[Crossref]
  • [3] M. Belmeguenai, T. Devolder and C. Chappert: “Precessional switching on exchange biased patterned magnetic media with perpendicular anisotropy”, J. Appl. Phys., Vol. 97, (2005), pp. 83903–83909. http://dx.doi.org/10.1063/1.1868057[Crossref]
  • [4] F. Garcia, F. Fettar, S. Auffret, B. Rodmacq and B. Dieny: “Exchange-biased spin valves with perpendicular magnetic anisotropy based on (Co/Pt) multilayers”, J. Appl. Phys., Vol. 93, (2003), pp. 8397–8399. http://dx.doi.org/10.1063/1.1558096[Crossref]
  • [5] L. Sun, S.M. Zhou, P.C. Searson and C.L. Chien: “Longitudinal and perpendicular exchange bias in FeMn/(FeNi/FeMn)n multilayers”, J. Appl. Phys., Vol. 93, (2003), pp. 6841–6843. http://dx.doi.org/10.1063/1.1544447[Crossref]
  • [6] J. Sort, V. Baltz, F. Garcia, B. Rodmacq and B. Dieny: “Tailoring perpendicular exchange bias in [Pt/Co]-IrMn multilayers”, Phys. Rev. B, Vol. 71, (2005), art. 054411.
  • [7] S. van Dijken, J. Moritz and J.M.D. Coey: “Correlation between perpendicular exchange bias and magnetic anisotropy in IrMn/[Co/Pt]n and [Pt/Co]n/IrMn multilayers”, J. Appl. Phys., Vol. 97, (2005), pp. 63907–63911. http://dx.doi.org/10.1063/1.1861964[Crossref]
  • [8] S. van Dijken, M. Besnier, J. Moritz and J.M.D. Coey: “IrMn as exchange-biasing material in systems with perpendicular magnetic anisotropy”, J. Appl. Phys., Vol. 97, (2005), pp. 10K114–10K117. http://dx.doi.org/10.1063/1.1855699
  • [9] F. Garcia, G. Casali, S. Auffret, B. Rodmacq and B. Dieny: “Exchange bias in (Pt/Co0.9Fe0.1)n/FeMn multilayers with perpendicular magnetic anisotropy”, J. Appl. Phys., Vol. 91, (2002), pp. 6905–6907. http://dx.doi.org/10.1063/1.1447870
  • [10] F. Garcia, J. Sort, B. Rodmacq, S. Auffret and B. Dieny: “Large anomalous enhancement of perpendicular exchange bias by introduction of a nonmagnetic spacer between the ferromagnetic and antiferromagnetic layers”, Appl. Phys. Lett., Vol. 83, (2003), pp. 3537–3539. http://dx.doi.org/10.1063/1.1619562[Crossref]
  • [11] J. Sort, F. Garcia, B. Rodmacq, S. Auffret and B. Dieny: “Enhancement of exchange bias through a non-magnetic spacer”, J. Magnet. Magnetic Mat., Vol. 272–276, (2004), pp. 355–356. http://dx.doi.org/10.1016/j.jmmm.2003.12.587[Crossref]
  • [12] X. Illa, E. Vives and A. Planes: “Metastable random-field Ising model with exchange enhancement: A simple model for exchange bias”, Phys. Rev. B, Vol. 66, (2002), art. 224422. [Crossref]
  • [13] T. Błachowicz: “Analysis of numerical limits in 2-D simulations of a ferromagnetic/antiferromagnetic interface using the random field Ising model”, Centr. Eur. J. Phys., Vol. 3, (2005), pp. 147–162.
  • [14] F. Ernult, B. Dieny, L. Billard, F. Lançon and J.R. Regnard: “Increase in ferromagnetic/antiferromagnetic exchange bias due to reduction of the interfacial exchange interaction”, J. Appl. Phys., Vol. 94, (2003), pp. 6678–6682. http://dx.doi.org/10.1063/1.1614867[Crossref]
  • [15] B. Beschoten, A. Tillmanns, J. Keller, G. Güntherodt, U. Nowak and K.D. Usadel: “Domain State Model for Exchange Bias: Influence of Structural Defects on Exchange Bias in Co/CoO”, Adv. Solid State Phys., Vol. 42, (2002), pp. 419–431.
  • [16] T. Mewes, R. Lopusnik, J. Fassbender, B. Hillebrands, M. Jung, D. Engel, A. Ehresmann and H. Schmoranzer: “Suppression of exchange bias by ion irradiation”, Appl. Phys. Lett., Vol. 76, (2000), pp. 1057–1059. http://dx.doi.org/10.1063/1.125937[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-006-0016-z
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