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
Ando, K
Saito, H
Jin, ZW
Fukumura, T
Kawasaki, M
Matsumoto, Y
Koinuma, H
[J]. 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
Dietl, T
Ohno, H
Matsukura, F
Cibert, J
Ferrand, D
[J]. SCIENCE, 2000, 287 (5455) : 1019 - 1022
[4] Structural and magnetic properties of Mn3O4 films grown on MgO(001) substrates by plasma-assisted MBE
Guo, LW
Peng, DL
Makino, H
Inaba, K
Ko, HJ
Sumiyama, K
Yao, T
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2000, 213 (03) : 321 - 325
[5] A key to room-temperature ferromagnetism in Fe-doped ZnO: Cu
Han, SJ
Song, JW
Yang, CH
Park, SH
Park, JH
Jeong, YH
Rhie, KW
[J]. APPLIED PHYSICS LETTERS, 2002, 81 (22) : 4212 - 4214
[6] Properties of Mn-doped Cu2O semiconducting thin films grown by pulsed-laser deposition
Ivill, M
Overberg, ME
Abernathy, CR
Norton, DP
Hebard, AF
Theodoropoulou, N
Budai, JD
[J]. SOLID-STATE ELECTRONICS, 2003, 47 (12) : 2215 - 2220
[7] Magnetism in cobalt-doped Cu2O thin films without and with Al, V, or Zn codopants
Kale, SN
Ogale, SB
Shinde, SR
Sahasrabuddhe, M
Kulkarni, VN
Greene, RL
Venkatesan, T
[J]. 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
Kawazoe, H
Yanagi, H
Ueda, K
Hosono, H
[J]. MRS BULLETIN, 2000, 25 (08) : 28 - 36
[10] Magnetic properties of epitaxially grown semiconducting Zn1-xCoxO thin films by pulsed laser deposition
Kim, JH
Kim, H
Kim, D
Ihm, YE
Choo, WK
[J]. JOURNAL OF APPLIED PHYSICS, 2002, 92 (10) : 6066 - 6071

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