title: Giant magneto-optical faraday effect in HgTe thin films in the terahertz spectral range.
abstract: We report the observation of a giant Faraday effect, using terahertz (THz) spectroscopy on epitaxial HgTe thin films at room temperature. The effect is caused by the combination of the unique band structure and the very high electron mobility of HgTe. Our observations suggest that HgTe is a high-potential material for applications as optical isolator and modulator in the THz spectral range.
authors.affiliation: Institute of Solid State Physics, Vienna University of Technology, 1040 Vienna, Austria.
authors.forename: A M
authors.initials: AM
authors.lastname: Shuvaev
authors.forename: G V
authors.initials: GV
authors.lastname: Astakhov
authors.forename: A
authors.initials: A
authors.lastname: Pimenov
authors.forename: C
authors.initials: C
authors.lastname: Brüne
authors.forename: H
authors.initials: H
authors.lastname: Buhmann
authors.forename: L W
authors.initials: LW
authors.lastname: Molenkamp