Magnetization study of interlayer exchange in semiconductor EuS–PbS ferromagnetic wedge multilayers

Kowalczyk, L.; Osinniy, V.; Chernyshova, M.; Dziawa, P.; Boratyński, Adam; Story, T.; Smits, C.J.P.; Swagten, H.J.M.; Sipatov, A. Yu.; Volobuev, Valentine V.

doi:10.1016/j.jallcom.2005.12.100

Cited by 1 publication

(2 citation statements)

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“…The results of careful X-ray diffraction analysis of structural parameters of the EuS-PbS wedge multilayers are presented in Ref. [13]. The diffraction spectra reveal in the EuS-PbS wedge superlattices satellite peaks up to the 4th order indicating the high crystal quality and excellent agreement of EuS-PbS superlattice period with technological data from in situ quartz layer thickness monitor.…”

Section: Methodsmentioning

confidence: 97%

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Interlayer Exchange Coupling in Semiconductor EuS-PbS Ferromagnetic Wedge Multilayers

et al. 2006

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Antiferromagnetic interlayer coupling between ferromagnetic layers of EuS via nonmagnetic PbS spacer layer was experimentally studied in EuSPbS wedge multilayers grown on KCl (001) substrates with EuS thickness of 6 nm and PbS thickness varying in the wedges in the range 0.3-6 nm (i.e. n = 1−20 monolayers). Measurements of magnetic hysteresis loops of EuS-PbS multilayers performed in the temperature range 5-30 K by superconducting (SQUID) and magneto-optical magnetometers revealed a rapid increase in saturation magnetic field in multilayers with PbS spacer thinner than about 1.5 nm. It shows a monotonic increase in interlayer coupling strength with a decreasing PbS spacer thickness, in qualitative agreement with 1/2 n dependence predicted theoretically for semiconductor magnetic superlattices.

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Section: Methodsmentioning

confidence: 97%

“…3). The coercive field of the layers shows only small increase in the same range of spacer thicknesses [13]. For the experimental analysis of the magnetic hysteresis loops along the wedge structure MOKE magnetometry was applied in the temperature range T = 4-30 K and magnetic fields up to 300 Oe using He-Ne laser.…”

Section: Methodsmentioning

confidence: 99%