Room temperature ferromagnetism in bulk Mn-doped Cu2O -: art. no. 072514

被引：110

作者：

Wei, M ^{[1
]}

Braddon, N ^{[1
]}

Zhi, D ^{[1
]}

Midgley, PA ^{[1
]}

Chen, SK ^{[1
]}

Blamire, MG ^{[1
]}

MacManus-Driscoll, JL ^{[1
]}

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 07期

关键词：

D O I：

10.1063/1.1869547

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bulk Mn-doped CU2O samples were produced by reacting CU2O and Mn2O3 powders in Ar gas at 650 and 800degreesC to give a nominal composition of 1.7 at. % Mn-doped CU2O. From x-ray energy dispersive spectrum analysis, the actual doping level was lower at 0.3-0.5 at.% Mn. Room temperature ferromagnetism with a coercive field of 50 Oe was found in the 650degreesC samples. The Curie temperature (T-C) of samples sintered at 650degreesC was above 300 K, whereas for 800degreesC samples it was 215 5 K. Using the nominal doping level, the magnetization saturation value was calculated to be similar to0.4mu(B)/Mn at 10 K. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3