The giant Faraday effect is one of the remarkable properties of diluted magnetic semiconductors type of II_1-xMn_xVI. Namely this effect has provided fertile ground for different optoelectronic applications including magnetic field sensors. In this work, the focus is on comparative magneto-optical study of CdMnTe, ZnMnTe, CdMnS in form of single crystals, thin films, nanocrystals and their application in magnetic field sensing. Single crystals were grown by the Bridgman method. Pulsed laser deposition technique has been applied to prepare thin films of CdMnTe. Growth regimes have been found for which physical characteristics of the thin films are similar to those for bulk material. Pulsed laser deposition technique was also applied for fabrication of CdMnTe and CdMnS nanocrystals embedded in SiO2 dielectric matrix. In Faraday rotation spectrum of CdMnTe film typical S-shape dispersion can be seen. The obtained results correlate with the data of the giant Faraday effect in the single crystals. Spectral dependence of Faraday rotation for nanocrystals of CdMnTe grown by laser deposition technique was found to be qualitatively similar to that of the related thin films. However, it was found additional enhancement of the Verdet constant in case of nanocrystal material almost for one order. The variant of one-way sensor scheme was used for designing of magneto-optical magnetic field sensor. Advantage of using thin films and nanocrystals in magnetic field sensing is low cost of manufacturing of such materials. This work was supported in part by grants No.M/128-2004 and No. D3/152-2005 from Ministry of Education and Science of Ukraine.

• Legal notice:
  

  Copyright (c) Pielaszek Research, all rights reserved.
  The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
  In every case, proper references including Author(s) name(s) and URL of this webpage: https://science24.com/paper/7737 must be provided.

1. Comparative study of Mn-doped II-VI semiconductors in form of bulk crystals, thin films and nanocrystals
2. Spin injection and detection in ZnO-based structures
3. Semimagnetic semiconductor oxides as materials for transparent electronics and spintronics
4. Optical and magneto-optical studies of composite materials containing semimagnetic semiconductor nanoparticles
5. Magneto-optical Faraday effect in composite films containing semiconductor nanoparticles
6. Optical and magneto-optical properties of ZnMnO and ZnMnFeO single crystals and thin films
7. Nanocrystals of CdTe and CdMnTe: Growth, Optical and Magnetooptical Properties