Ferromagnetic material CdGeP2:Mn for spintronics

被引：8
作者：
Novotortsev, V. M.
Varnavskii, S. A.
Marenkin, S. F.
Koroleva, L. I.
Demin, R. V.
Trukhan, V. M.
Klimonskii, S. O.
Kuznetsov, V. D.
机构：
[1] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
[3] Natl Acad Sci Belarus, Inst Solid State & Semicond Phys, Minsk 2200072, BELARUS
[4] Mendeleev Univ Chem Technol, Moscow 125047, Russia
来源：
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2006年 / 51卷 / 08期
基金：
俄罗斯基础研究基金会;
关键词：
Chalcopyrite; Double Exchange; Langevin Function; Spin Glass State; Binary Semiconductor;
D O I：
10.1134/S0036023606080018
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Solid solutions Cd1-x MnxGeP2 (x=0-0.19) have been synthesized and identified. In these solutions, the unit cell parameters decrease with an increase in the manganese content. The solid solution Cd0.81Mn0.19GeP2 is a ferromagnet with the Curie temperature T (C) approximate to 311 K. The paramagnetic moment of Mn2+ ions equal to 5.8 mu(B), as well as the spontaneous magnetization constituting 76% of the total magnetization of a crystal, has been determined with the use of the Langevin function. The origin of ferromagnetism in CdGeP2:Mn is exchange mediated by charge carriers (holes). These holes are caused by cationic defects in the structure of chalcopyrite.
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收藏
页码：1153 / 1156
页数：4
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