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

Volume

38

Issue

5

fYear

2002

fDate

9/1/2002 12:00:00 AM

Firstpage

3237

Lastpage

3239

Abstract

The relationship between Faraday rotation θ_F 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 θ_F 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 Cd_0.51Mn_0.414Co_0.076Te film is approximately three times that for Cd_0.39Mn_0.61Te film. The value of θ_F in the Cd_0.51Mn_0.414Co_0.076Te 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 θ_F 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; Cd_0.39Mn_0.61Te; Cd_0.39Mn_0.61Te film; Cd_0.51Mn_0.414Co_0.076Te; Cd_0.51Mn_0.414Co_0.076Te 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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2002.802515

Filename

1042509