Structural, magnetotransport, and micromagnetic properties of sputtered Ir(111)/Co superlattices

Luo, Yi; Pfeifer, Birgit; Kaeufler, Andrea; Moske, M.; Samwer, K.

doi:10.1063/1.372206

Cited by 7 publications

(2 citation statements)

References 23 publications

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“…This is particularly important to recall, since the Kerr rotation and ellipticity angles are determined only by the elements of the surface reflectivity matrix in Eqs. (10) and (11).…”

Section: Co/ir Superstructure On Ir(111)mentioning

confidence: 99%

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Magneto-optical properties of Co/Ir superstructures on Ir(111)

2011

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The fully relativistic spin-polarized screened Korringa-Kohn-Rostoker method is used to evaluate the electronic and magnetic structure as well as the optical conductivity of (Co m Ir m) n superstructures on Ir(111). By mapping the microscopic optical conductivity tensor onto the macroscopic permittivity tensor and by using the so-called 2 × 2 matrix technique the surface reflectivity matrices for these systems are then calculated, from which in turn the Kerr rotation and ellipticity angles can be determined. It is found (i) that when varying at a given value of m the number of repetitions n, these angles are linearly proportional to the total magnetic moment, and (ii) that at a frequency of about 3.8 eV the Kerr rotation angles have the largest value, the corresponding maximum being mainly caused by the Ir spacer layers. The optical properties of the free surface of Ir(111), which is considered to check the applied theoretical schemes, turn out to be in good agreement with existing experimental data.

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“…This is particularly important to recall, since the Kerr rotation and ellipticity angles are determined only by the elements of the surface reflectivity matrix in Eqs. (10) and (11).…”

Section: Co/ir Superstructure On Ir(111)mentioning

confidence: 99%

“…Less studies were performed on (Co/Ir) superstructures on Ir(111). 10,11 In the wide majority of present-day applications, the Kerr effect is mainly used as a "finger-print" method to map the properties of magnetic surfaces.…”

Section: Introductionmentioning

confidence: 99%