Dilute magnetic semiconductor: Magnesium-doped Zn0.9Cd0.1GeAs2
В.М. НовоторцевKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, RussiaI. S. ZakharovKursk State Technical University, Kursk, RussiaА. В. КочураDepartment of Physics, Lappeenranta University of Technology, Lappeenranta, FinlandR. LaihoWihuru Physical Laboratory, University of Turku, Turku, FinlandA. LashkulDepartment of Physics, Lappeenranta University of Technology, Lappeenranta, FinlandE. LähderantaDepartment of Physics, Lappeenranta University of Technology, Lappeenranta, FinlandС. Ф. МаренкинKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, RussiaS. A. VarnavskiĭKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, RussiaA. V. MolchanovKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, RussiaS. G. MikhailovKurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, RussiaM. S. ShakhovIoffe Physicotechnical Institute, Politekhnicheskaya ul. 26, St. Petersburg, 194021, RussiaG. S. Yur’evNikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent’eva 3, Novosibirsk, 630090, Russia
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Dilute magnetic semiconductors based on manganese-doped Zn0.9Cd0.1GeAs2 solid solution with various doping levels were synthesized. Their Curie point in 5-T magnetic field was 349 K. Ferromagnetic ordering in these semiconductors was due to MnAs nanoclusters, whose sizes were 3.7–3.8 nm.
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