Abstract

The giant magnetoresistance, magnetic, optical, and magnetooptical properties of the MBE-grown Fe/Cr superlattice series on single-crystal MgO(1 0 0) substrate with various Fe layer thicknesses (t_Fe=3–48 Å) are studied. The angles ₀ characterizing the noncollinear magnetic ordering in superlattices are defined. The nonmonotonic dependence on Fe layer thickness of properties investigated is discussed.

Author Keywords: Magnetic superlattice; Magnetoresistance; Noncollinear ordering; Magnetooptics

Article Outline

• References

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Fig. 1. Dependence of magnetoresistance r on the magnetic field.

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Fig. 2. Dependence of |r| and M_S on the Fe layer thickness.

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Fig. 3. Thickness dependence (1) ₀(t_Fe), (2) J₁/J₂(t_Fe), (3) ₀(t_Cr) at t_Fe~20 Å [6].

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Fig. 4. Thickness dependence on t_Fe: (a) Re _xx; (b)  Im _xy; broken curves are the results of calculation of these functions at =0.5 m, solid lines are guide to the eye.

References

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