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Ferromagnetic Phase in Bulk (Cd, Cr)Te Dilute Magnetic Semiconductor

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1 Author(s)
Kowan-Young Ko ; Sch. of Mech. Eng., Ulsan Coll. Univ., Ulsan

Metallurgical, magnetic and electrical properties of bulk Cr-doped CdTe crystal grown by vertical solidification method are reported. Structural and metallographic investigation showed homogeneous zinc-blende structure with a lattice parameter of about 6.481 Aring. Magnetic measurement showed temperature-induced magnetic phase transition with a Curie temperature ~ 362 K. Resistance with 4 probe method showed highly insulating > 108Omega at room temperature. Composition analysis using field emission transmission electron microscopy revealed that it could be composed of locally different Cr-substituted CdTe region depending on Cr content.

Published in:

IEEE Transactions on Magnetics  (Volume:45 ,  Issue: 6 )