Ferromagnetic phenomenon revealed in the chalcopyrite semiconductor CdGeP2:Mn
- 1 June 2001
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 89 (11) , 7027-7029
- https://doi.org/10.1063/1.1357842
Abstract
High concentration of Mn atoms has been successfully incorporated into the chalcopyrite type II–IV– V 2 semiconductor CdGeP 2 by solid-state reaction technique without causing any structural changes. Polycrystallinepowder of the chalcopyrite-related material in Cd–Mn–Ge–P quaternary system has been additionally synthesized by sintering technology. Well-defined M–H hysteresis loops were observed at room temperature in CdGeP 2 :Mn single crystal and polycrystallinepowder samples grown independently. The Curie temperature has been determined to be 320 K for single crystal phase Cd x Mn 1−x GeP 2 and 310 K for the polycrystallinepowder.Magnetic force microscopy(MFM) observation clearly showed a stripe domain pattern on the Mn-diffused surface of CdGeP 2 single crystal. The magneto-optical Kerr ellipticity spectrum of CdGeP 2 :Mn crystal showed a peak around 1.75 eV at T=300 K.This publication has 5 references indexed in Scilit:
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