Konferenzpaper

Jahr der Veröffentlichung: 2008

Seiten: 2852-2856

Zeitschrift: Journal of the Korean Physical Society

Bandnummer: 53

Heftnummer: 5

ISSN: 0374-4884

Open Access Status: Green

DOI Link: https://doi.org/10.3938/jkps.53.2852

Konferenz: 13th International Conference on II-VI Compounds

Verlag: Springer

Abstract: 
Metastable zinc-blende MnS layers of various thicknesses from 1.8 nm to 8.6 urn have been grown by molecular beam epitaxy on (100) GaAs between ZnSe cladding layers. We studied the dependences of the optical and the magnetic properties on the layer thickness. On the one hand, the non-exponential decay of the Mn internal transition is found to be faster for thicker layer, which is a size effect and not caused by the interfaces. On the other hand, the Neel-temperature is not altered with decreasing layer thickness, but the phase-transition-induced shift of the internal Mn transitions is smaller for thinner MnS layers. This is explained by the dominating influence of Mn ions at the interface, which possess a reduced number of Mn neighbors. SQUID measurements in a weak external magnetic field confirm the optical observations in zero field. However, applying a strong magnetic field reveals the metamagnetic character of these zinc-blende MnS layers. An antiferromagnetic-to-ferromagnetic phase transition is found with increasing external field.

Harvard-Zitierstil: Heimbrodt, W., Chen, L., Von Nidda, H., Loidl, A., Klar, P., David, L., et al. (2008) Optical and Magnetic Properties of MBE-Grown Manganese Sulfide Layers, Journal of the Korean Physical Society, 53(5), pp. 2852-2856. https://doi.org/10.3938/jkps.53.2852

APA-Zitierstil: Heimbrodt, W., Chen, L., Von Nidda, H., Loidl, A., Klar, P., David, L., & Prior, K. (2008). Optical and Magnetic Properties of MBE-Grown Manganese Sulfide Layers. Journal of the Korean Physical Society. 53(5), 2852-2856. https://doi.org/10.3938/jkps.53.2852