Magnetic properties of Mn-doped 6H-SiC.

Autor: Bo Song, Huiqiang Bao, Hui Li, Ming Lei, Jikang Jian, Jiecai Han, Xinghong Zhang, Songhe Meng, Wanyan Wang, Xiaolong Chen
Předmět:
Zdroj: Applied Physics Letters; 3/9/2009, Vol. 94 Issue 10, pN.PAG, 3p, 1 Black and White Photograph, 3 Graphs
Abstrakt: We report the synthesis and characterizations of low Mn-doped (<10-3 molar fraction) 6H-SiC. Raman scattering studies show an unusual shift in Raman peak with altering Mn contents. The magnetic properties measurement shows the typical ferromagnetic order was established at as low Mn-doped concentration as 10-4 molar fraction at around 250 K. It is speculated that the defects-related effects other than the Mn content play a more important role to determine the magnetic ordering. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index