2007
DOI: 10.12693/aphyspola.112.419
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Magnetic Properties of EuS-SrS Semiconductor Multilayer Structures

Abstract: Magnetic and structural properties of EuS-SrS semiconductor multilayers were studied by SQUID and magneto-optical Kerr effect magnetometry techniques and by X-ray diffraction method. The multilayers composed of monocrystalline, lattice matched ferromagnetic EuS layers (thickness 35-50Å) and nonmagnetic SrS spacer layers (thickness 45-100Å) were grown epitaxially on KCl (001) substrates with PbS buffer layer. Ferromagnetic transition in EuS-SrS multilayers was found at the Curie temperature Tc = 17 K. The multi… Show more

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Cited by 3 publications
(2 citation statements)
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“…at temperature close to the Curie temperature of bulk EuS. Such behavior was already observed in the case of previously studied magnetically coupled EuS/PbS [9,10] and EuS/SrS [11] multilayers and can be interpreted as a result of antiferromagnetic alignment of magnetization vectors of Co and EuS layers. Figure 3 shows the results of the measurements of the temperature dependence of magnetization M (T ) carried out for EuS/Co/EuS trilayer.…”
Section: Methodssupporting
confidence: 74%
“…at temperature close to the Curie temperature of bulk EuS. Such behavior was already observed in the case of previously studied magnetically coupled EuS/PbS [9,10] and EuS/SrS [11] multilayers and can be interpreted as a result of antiferromagnetic alignment of magnetization vectors of Co and EuS layers. Figure 3 shows the results of the measurements of the temperature dependence of magnetization M (T ) carried out for EuS/Co/EuS trilayer.…”
Section: Methodssupporting
confidence: 74%
“…It should be noted, however, that EuS/SrS is a special case of a superlattice system- namely, due to the very small nuclear scattering contrast between EuS and SrS layers (nuclear scattering lengths of Eu and Sr are 7.22-1.26i fm and 7.02 fm, respectively) the structural SL Bragg peaks are extremely weak and they are not visible against the background in neutron reflectivity spectra (they can be seen only in x-ray reflectivity spectra, and from such measurements one can accurately determine their positions). Magnetic and structural properties of EuS/SrS semiconductor multilayers were studied earlier by SQUID, magneto-optical Kerr effect magnetometry and x-ray diffraction methods [7].…”
Section: Eus/srs Superlatticesmentioning
confidence: 99%