X-ray study of the structure and magnetic properties of ZnO:(Co, Mn) powders

被引：18

作者：

Yang, J. H. ^{[1
]}

Zhao, L. Y. ^{[1
]}

Zhang, Y. J. ^{[1
]}

Wang, Y. X. ^{[1
]}

Liu, H. L. ^{[1
]}

机构：

[1] Jilin Normal Univ, Inst Condensed State Phys, Siping 136000, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 473卷 / 1-2期

基金：

芬兰科学院; 中国国家自然科学基金;

关键词：

Semiconductors; Sol-gel processes; Magnetization; CO-DOPED ZNO; THIN-FILMS; FERROMAGNETISM; SEMICONDUCTORS; SPINTRONICS; BULK;

D O I：

10.1016/j.jallcom.2008.06.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Mn- and Co-doped ZnO powders were prepared by sol-gel method. The XRD peak position shifts regularly with the magnetic-ions concentration of the samples. Magnetism analyzing indicates that Zn(1-x)Mn(x)O is paramagnetic at room temperature, and at low temperature the exchange interaction between Mn ions is antiferromagnetic. Co-doped ZnO is also paramagnetic at room temperature. Ferromagnetic behavior can be found in Zn(1-x)Co(x)O at low temperature (T(c) approximate to 150 K), but the saturation magnetization is only about 0.1 mu(B)/Co, indicating only a fraction of Co ions participate in ferromagnetism and the rest may contribute to the observed paramagnetic signal or even be antiferromagnetic coupled. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：543 / 545

页数：3

共 18 条

[1] 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

[2] Exploration of oxide-based diluted magnetic semiconductors toward transparent spintronics [J].

Fukumura, T ;

Yamada, Y ;

Toyosaki, H ;

Hasegawa, T ;

Koinuma, H ;

Kawasaki, M .

APPLIED SURFACE SCIENCE, 2004, 223 (1-3) :62-67

[3] Magnetism in Mn-doped ZnO bulk samples prepared by solid state reaction [J].

Han, SJ ;

Jang, TH ;

Kim, YB ;

Park, BG ;

Park, JH ;

Jeong, YH .

APPLIED PHYSICS LETTERS, 2003, 83 (05) :920-922

[4] Absence of ferromagnetism in Co and Mn substituted polycrystalline ZnO [J].

Lawes, G ;

Risbud, AS ;

Ramirez, AP ;

Seshadri, R .

PHYSICAL REVIEW B, 2005, 71 (04)

[5] Study of diluted magnetic semiconductor: Co-doped ZnO [J].

Lee, HJ ;

Jeong, SY ;

Cho, CR ;

Park, CH .

APPLIED PHYSICS LETTERS, 2002, 81 (21) :4020-4022

[6] Ferromagnetism of ZnO and GaN:: A review [J].

Liu, C ;

Yun, F ;

Morkoç, H .

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2005, 16 (09) :555-597

[7] Structural, optical and magnetic properties of Co-doped ZnO films [J].

Liu, Xue-Chao ;

Shi, Er-Wei ;

Chen, Zhi-Zhan ;

Zhang, Hua-Wei ;

Song, Li-Xin ;

Wang, Huan ;

Yao, Shu-De .

JOURNAL OF CRYSTAL GROWTH, 2006, 296 (02) :135-140

[8] Structure and magnetic properties of Co-doped ZnO nanoparticles -: art. no. 165202 [J].

Martínez, B ;

Sandiumenge, F ;

Balcells, L ;

Arbiol, J ;

Sibieude, F ;

Monty, C .

PHYSICAL REVIEW B, 2005, 72 (16)

[9] Ferromagnetism in cobalt-implanted ZnO [J].

Norton, DP ;

Overberg, ME ;

Pearton, SJ ;

Pruessner, K ;

Budai, JD ;

Boatner, LA ;

Chisholm, MF ;

Lee, JS ;

Khim, ZG ;

Park, YD ;

Wilson, RG .

APPLIED PHYSICS LETTERS, 2003, 83 (26) :5488-5490

[10] Co-metal clustering as the origin of ferromagnetism in Co-doped ZnO thin films [J].

Park, JH ;

Kim, MG ;

Jang, HM ;

Ryu, S ;

Kim, YM .

APPLIED PHYSICS LETTERS, 2004, 84 (08) :1338-1340

← 1 2 →