Title :
Magnetooptical properties of diluted magnetic semiconductor CdMnCoTe films
Author :
Imamura, Masaaki ; Ahn, Jin-Yong ; Takashima, Kazuo ; Inoue, Satoru
Author_Institution :
Dept. of Electr. Eng., Fukuoka Inst. of Technol., Japan
fDate :
9/1/2002 12:00:00 AM
Abstract :
The relationship between Faraday rotation θF and magnetic field H in the visible wavelength region for films of the diluted magnetic semiconductor CdMnCoTe deposited on quartz glass substrates by molecular beam epitaxy is examined. The magnitude of θF in the CdMnCoTe films is compared with that in CdMnTe film and ferrimagnetic garnet Bi:YIG film, and it is shown that the Faraday rotation for Cd0.51Mn0.414Co0.076Te film is approximately three times that for Cd0.39Mn0.61Te film. The value of θF in the Cd0.51Mn0.414Co0.076Te film at an optical wavelength of 670 nm was -0.2°/μm under a magnetic field of 6.8 kOe. The relationship between the values of θF for the diluted magnetic semiconductor films and the substrate materials is also discussed.
Keywords :
Faraday effect; cadmium compounds; cobalt compounds; magnetic epitaxial layers; magnetisation; manganese compounds; molecular beam epitaxial growth; semiconductor epitaxial layers; semimagnetic semiconductors; 670 nm; Bi:YIG film ferrimagnetic garnet; Cd0.39Mn0.61Te; Cd0.39Mn0.61Te film; Cd0.51Mn0.414Co0.076Te; Cd0.51Mn0.414Co0.076Te film; CdMnCoTe; CdMnTe film; Faraday rotation; diluted magnetic semiconductor CdMnCoTe films; magnetic field; magnetooptical devices; magnetooptical properties; substrate materials; visible wavelength region; Ferrimagnetic films; Garnet films; Magnetic fields; Magnetic films; Magnetic properties; Magnetic semiconductors; Optical films; Semiconductor films; Substrates; Tellurium;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802515
