Room-temperature ferromagnetism in Cu-doped ZnO thin films

被引：391

作者：

Buchholz, DB ^{[1
]}

Chang, RPH

Song, JH

Ketterson, JB

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[2] Northwestern Univ, Mat Res Ctr, Evanston, IL 60208 USA

[3] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 08期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

D O I：

10.1063/1.2032588

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A series of copper-doped zinc oxide films were grown by pulsed-laser ablation. Films grown under conditions that produced n-type ZnO were nonmagnetic while those grown under conditions that produced p-type were ferromagnetic with a Curie temperature above 350 K. The magnetic moment per copper atom decreased as the copper concentration increased. An explanation for this result is proposed based on the distance between nearest-neighbor copper atoms. (c) 2005 American Institute of Physics.

引用

页数：3

共 17 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] Copper/Zinc oxide catalysts.: Part XII.: Solid solution formation in the CuO/ZnO system.: X-ray powder diffraction study [J].

Cernák, J ;

Gérard, F ;

Kappenstein, C ;

Chomic, J .

MONATSHEFTE FUR CHEMIE, 2004, 135 (09) :1081-1088

[3] Electronic structure and magnetic moments of 3d transition metal-doped ZnO [J].

Chien, CH ;

Chiou, SH ;

Guo, GY ;

Yao, YD .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2004, 282 :275-278

[4]

Dielt T., 2000, SCIENCE, V287, P1019

[5] Electronic structures and ferromagnetism of Cu- and mn-doped ZnO [J].

Feng, XB .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (24) :4251-4259

[6] DILUTED MAGNETIC SEMICONDUCTORS - AN INTERFACE OF SEMICONDUCTOR PHYSICS AND MAGNETISM [J].

FURDYNA, JK .

JOURNAL OF APPLIED PHYSICS, 1982, 53 (11) :7637-7643

[7] Spin-guide source for the generation of highly spin-polarized currents [J].

Gurzhi, RN ;

Kalinenko, AN ;

Kopeliovich, AI ;

Yanovsky, AV ;

Bogachek, EN ;

Landman, U .

PHYSICAL REVIEW B, 2003, 68 (12)

[8] A study of magnetic and optical properties of Cu-doped ZnO [J].

Lee, HJ ;

Kim, BS ;

Cho, CR ;

Jeong, SY .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2004, 241 (07) :1533-1536

[9] Observation of ferromagnetism above 900 K in Cr-GaN and Cr-AlN [J].

Liu, HX ;

Wu, SY ;

Singh, RK ;

Gu, L ;

Smith, DJ ;

Newman, N ;

Dilley, NR ;

Montes, L ;

Simmonds, MB .

APPLIED PHYSICS LETTERS, 2004, 85 (18) :4076-4078

[10] Ferromagnetism in ZnO codoped with transition metals:: Zn1-x(FeCo)xO and Zn1-x(FeCu)xO -: art. no. 224436 [J].

Park, MS ;

Min, BI .

PHYSICAL REVIEW B, 2003, 68 (22)

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