Magneto-Optical Properties of Sputtered Mn5Ge3 Films
- 15 March 1971
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 42 (4) , 1706-1707
- https://doi.org/10.1063/1.1660402
Abstract
The Faraday rotation and optical absorption of ferromagnetic Mn5Ge3 thin films have been measured in the visible and near infrared. Apart from a gradual rise in optical density in the near uv, the absorption is featureless to 2.5 μ. The Faraday rotation behaves similarly. At 500 mμ the room-temperature absorption coefficient α and the 5°K saturation rotation F are 3.5×105 cm−1 and 2.1×105 deg/cm, respectively. The rotation decreases with rising temperature and vanishes at 40°C which agrees well with the bulk Curie temperature of 37°C. The in-plane coercive field Hc decreases monotonically with temperature as Tc is approached. For a 900-Å-thick film Hc is 260 Oe at 0°C. The dependence of magnetic and magneto-optical properties on film structure is discussed.This publication has 4 references indexed in Scilit:
- Magneto-Optic Properties of CrTe Films Prepared by Sequential EvaporationJournal of Applied Physics, 1970
- MnBi Thin Films: Physical Properties and Memory ApplicationsJournal of Applied Physics, 1968
- Magnetic Structure of the Mn5Ge3 AlloyPhysica Status Solidi (b), 1963
- Convalent Bond and Spin Scheme in the Intermetallic Compound with B82 TypeJournal of the Physics Society Japan, 1962