Ferromagnetism in Cr-doped Ge

We have fabricated Cr-doped bulk Ge single crystal using the vertical gradient solidification method. The material shows ferromagnetic ordering at 126 K, as determined from temperature-dependent magnetization and resistance measurements. A sample with x=0.01 was p type with nh=3×1017 cm−3 at 350 K....

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Bibliographic Details
Published in:Applied physics letters 2002-11, Vol.81 (19), p.3606-3608
Main Authors: Choi, Sungyoul, Hong, Soon Cheol, Cho, Sunglae, Kim, Yunki, Ketterson, John B., Jung, Chi-Un, Rhie, K., Kim, Bong-Jun, Kim, Y. C.
Format: Article
Language:English
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Summary:We have fabricated Cr-doped bulk Ge single crystal using the vertical gradient solidification method. The material shows ferromagnetic ordering at 126 K, as determined from temperature-dependent magnetization and resistance measurements. A sample with x=0.01 was p type with nh=3×1017 cm−3 at 350 K. The measured magnetic moment per Cr was 0.83μB at 5 K.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1516613