Optical and magneto-optical properties of the cerium monochalcogenides

✍ Scribed by R. Pittini; J. Schoenes; P. Wachter

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 240 KB
• Volume: 206-207
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(94)00375-6

✦ Synopsis

We report on measurements of the room temperature reflectivity between 0.03 and 12.4 eV and of the magneto-optical polar Kerr rotation in the energy range between 0.6 and 5.3 eV at 1.35 K in a magnetic field of 10 T on single crystals of CeSe. Although the magnetic moment amounts only to 0.376/,B/Ce, a remarkable Kerr rotation 0 K of 5.5 ° has been measured at the photon energy of 2.6 eV. We assign this peak in 0 K to a 4fl--+5d (EF) transition, enhanced by the low values of the optical constants in the plasma minimum of CeSe. A comparison with the magneto-optical spectrum of CeTe and with the optical spectra of CeS and CeTe is made.