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

共 21 条

[1] Magneto-optical properties of ZnO-based diluted magnetic semiconductors [J].

Ando, K ;

Saito, H ;

Jin, ZW ;

Fukumura, T ;

Kawasaki, M ;

Matsumoto, Y ;

Koinuma, H .

JOURNAL OF APPLIED PHYSICS, 2001, 89 (11) :7284-7286

[2]

Chambers S. A., 2002, Mater. Today, V5, P34, DOI [10.1016/S1369-7021(02)05423-8, DOI 10.1016/S1369-7021(02)05423-8]

[3] Zener model description of ferromagnetism in zinc-blende magnetic semiconductors [J].

Dietl, T ;

Ohno, H ;

Matsukura, F ;

Cibert, J ;

Ferrand, D .

SCIENCE, 2000, 287 (5455) :1019-1022

[4] Structural and magnetic properties of Mn3O4 films grown on MgO(001) substrates by plasma-assisted MBE [J].

Guo, LW ;

Peng, DL ;

Makino, H ;

Inaba, K ;

Ko, HJ ;

Sumiyama, K ;

Yao, T .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 213 (03) :321-325

[5] A key to room-temperature ferromagnetism in Fe-doped ZnO: Cu [J].

Han, SJ ;

Song, JW ;

Yang, CH ;

Park, SH ;

Park, JH ;

Jeong, YH ;

Rhie, KW .

APPLIED PHYSICS LETTERS, 2002, 81 (22) :4212-4214

[6] Properties of Mn-doped Cu2O semiconducting thin films grown by pulsed-laser deposition [J].

Ivill, M ;

Overberg, ME ;

Abernathy, CR ;

Norton, DP ;

Hebard, AF ;

Theodoropoulou, N ;

Budai, JD .

SOLID-STATE ELECTRONICS, 2003, 47 (12) :2215-2220

[7] Magnetism in cobalt-doped Cu2O thin films without and with Al, V, or Zn codopants [J].

Kale, SN ;

Ogale, SB ;

Shinde, SR ;

Sahasrabuddhe, M ;

Kulkarni, VN ;

Greene, RL ;

Venkatesan, T .

APPLIED PHYSICS LETTERS, 2003, 82 (13) :2100-2102

[8]

KANUNGO SB, 1987, INDIAN J CHEM A, V26, P373

[9] Transparent p-type conducting oxides:: Design and fabrication of p-n heterojunctions [J].

Kawazoe, H ;

Yanagi, H ;

Ueda, K ;

Hosono, H .

MRS BULLETIN, 2000, 25 (08) :28-36

[10] Magnetic properties of epitaxially grown semiconducting Zn1-xCoxO thin films by pulsed laser deposition [J].

Kim, JH ;

Kim, H ;

Kim, D ;

Ihm, YE ;

Choo, WK .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (10) :6066-6071

← 1 2 3 →