Perpendicular anisotropy dependence of oscillatory interlayer coupling behavior in [Pt/Co]5/Ru/[Co/Pt]5 multilayers

Zhao, J.; Wang, Y. J.; Liu, Y. Z.; Han, X. F.; Zhang, Z.
July 2008
Journal of Applied Physics;Jul2008, Vol. 104 Issue 2, p023911
Academic Journal
The experiments on the [t1Pt/0.4Co]5/(0.2–5.0)Ru/[0.4Co/t2Pt]5 (thickness unit is nm) multilayers with perpendicular anisotropy (PA) indicate that the interlayer coupling shows an antiferromagnetic (AF) and a ferromagnetic oscillatory behavior with the thickness of Ru spacer layers from 0 to 5.0 nm, and that the AF oscillations display a superposition of two different periods, which are 0.8 and 1.1 nm, respectively. Moreover, we found that the magnitude of AF coupling strength J is closely related to the magnitude of PA caused by varied thickness of nonmagnetic Pt layer. Our experimental results can be explained by Bruno’s electron-optics model.


Related Articles

  • Noninteracting electrons in one-dimensional systems. V. F.#Gantmakher // Low Temperature Physics;Mar2005, Vol. 31 Issue 3/4, p331 

    The theoretical fundamentals for describing the behavior of noninteracting electrons in one-dimensional systems are presented: the transport characteristics of an ideal wire connecting two thermostats; a description of elastic scattering by a chaotic sequence of barriers using Landauer’s...

  • Unitarity triangle test of the extra factor of two in particle oscillation phases. Bilenky, S. M.; Grimus, W.; Schwetz, T. // European Physical Journal C -- Particles & Fields;May2005, Vol. 41 Issue 2, p153 

    There are claims in the literature that in neutrino oscillations and oscillations of neutral kaons and B-mesons the oscillation phase differs from the standard one by a factor of two. We reconsider the arguments leading to this extra factor and investigate, in particular, the non-relativistic...

  • Periodic Oscillations within the Chaotic Region in Finite Piezoelectric Structures. Bettucci, A.; Biagioni, A.; D'Orazio, A.; Passeri, D. // AIP Conference Proceedings;6/24/2008, Vol. 1022 Issue 1, p251 

    We report experimental observation of a window of periodic oscillations within the chaotic oscillations of a finite piezoelectric structure electrically forced with a frequency equal to—or close to—a normal mode. Continuously sampled spectra of the oscillation as the level of the...

  • Role of beam quality in free-electron lasers. Hafizi, B.; Roberson, C.W. // Physics of Plasmas;May96, Vol. 3 Issue 5, p2156 

    A kinetic theory of the scaling of free-electron lasers is presented. The results are based on a variational solution of an eigenvalue equation that is derived from the Vlasov?Maxwell equations and includes the effects of optical guiding, betatron oscillations and emittance, energy spread, and...

  • Not completely flattened radial profile of the electron temperature in the vicinity of magnetic islands in Tokamak Chauffage Alfvén Brésilien. Fonseca, A. M. M.; Tsypin, V. S.; Galvão, R. M. O.; Kuznetsov, Y. K.; Nascimento, I. C.; da Silva, R. P.; Saettone, E. A.; Vannucci, A. // Physics of Plasmas;May2005, Vol. 12 Issue 5, p052501 

    Recent results obtained in TCABR (Tokamak Chauffage Alfvén Brésilien) [J. H. F. Severo, I. C. Nascimento, V. S. Tsypin, and R. M. O. Galvão, Nucl. Fusion 43, 1047 (2003)] show a nonmonotonic variation of the poloidal rotation velocity at the position of major magnetic islands. In this...

  • Leptogenesis and low energy observables. Rodejohann, Werner // European Physical Journal C -- Particles & Fields;Mar2004 Supplement 1, Vol. 33, ps868 

    Leptogenesis can link the smallness of neutrino masses as implied by neutrino oscillations with the non–vanishing baryon asymmetry of the universe. This connection is provided by the see–saw mechanism. It is interesting to ask if one can relate also the CP violation required for...

  • A covariant path amplitude description of flavour oscillations: the Gribov-Pontecorvo phasefor neutrino vacuum propagation is right. Field, J. H. // European Physical Journal C -- Particles & Fields;Oct2003, Vol. 30 Issue 3, p305 

    An extended study is performed of geometrical and kinematical assumptions used in calculations of the neutrino oscillation phase. The almost universally employed "equal velocity" assumption, in which all neutrino mass eigenstates are produced at the same time, is shown to underestimate, by a...

  • Spatially dependent quantum interference effects in the detection probability of charged leptons produced in neutrino interactions or weak decay processes. Field, J. // European Physical Journal C -- Particles & Fields;Oct2004, Vol. 37 Issue 3, p359 

    Feynman’s path amplitude formulation of quantum mechanics is used to analyse the production of charged leptons from charged current weak interaction processes. For neutrino induced reactions the interference effects predicted are usually called “neutrino oscillations”. Similar...

  • Optical Injector Based on Particle Acceleration by Stimulated Emission of Radiation (PASER). Schächter, Levi // AIP Conference Proceedings;1/22/2008, Vol. 1086 Issue 1, p514 

    Employing a simple analytic model we demonstrate that electrons oscillating in a Penning trap may drain the energy stored in an active medium. For this process to happen, the ensemble of electrons must become bunched and the energy imparted to these electrons allows them to leave the trap...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics