Optical and electrical properties of Co-doped epitaxial ZnO films

被引：34

作者：

Jin, ZW

Fukumura, T

Hasegawa, K

Yoo, YZ

Ando, K

Sekiguchi, T

Ahmet, P

Chikyow, T

Hasegawa, T

Koinuma, H

Kawasaki, M

机构：

[1] Natl Inst Mat Sci, Nanomat Lab, Nano Device Res Grp, Tsukuba, Ibaraki 3050047, Japan

[2] Tokyo Inst Technol, Dept Innovat & Engn Mat, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[3] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[4] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan

[5] Tokyo Inst Technol, COMET, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[6] Tokyo Inst Technol, Frontier Collaborat Res Ctr, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[7] Japan Sci & Technol Corp, CREST, Tokyo 1690072, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2002年 / 237卷

基金：

日本学术振兴会;

关键词：

molecular beam epitaxy; zinc compounds; magneto-optic materials;

D O I：

10.1016/S0022-0248(01)01976-5

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Epitaxial ZnO films doped with Co were fabricated by the high throughput combinatorial laser molecular-beam epitaxy method. The solubility limit of Co in ZnO was determined. Transmission and cathodoluminescence spectra were measured to study the electronic structures of Co in Zn1-xCoxO films. Magnetoresistance behavior was measured for a selected sample co-doped with I mol% of Al to investigate s-d exchange interaction between the conducting s electron spins and the d electron spins localized at Co impurity. Huge magneto-optical effects comparable with that of Cd1-xMnxTe were observed on Zn1-xCoxO films. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：548 / 552

页数：5

共 16 条

[1] MAGNETIC CIRCULAR-DICHROISM OF ZINC-BLENDE-PHASE MNTE [J].

ANDO, K ;

TAKAHASHI, K ;

OKUDA, T ;

UMEHARA, M .

PHYSICAL REVIEW B, 1992, 46 (19) :12289-12297

[2]

Ando K, 2000, SPRINGER SERIES SOLI, V128, P211

[3] ZERO-PHONON STRUCTURES IN THE OPTICAL-SPECTRA OF SOME TRANSITION-METAL IONS IN CDSE CRYSTALS [J].

BUHMANN, D ;

SCHULZ, HJ ;

THIEDE, M .

PHYSICAL REVIEW B, 1981, 24 (11) :6221-6233

[4] 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

[5]

FURDYNA JK, 1988, J APPL PHYS, V64, P29

[6] Weak localization effects in ZnO surface wells [J].

Goldenblum, A ;

Bogatu, V ;

Stoica, T ;

Goldstein, Y ;

Many, A .

PHYSICAL REVIEW B, 1999, 60 (08) :5832-5838

[7]

HIKAMI S, 1980, PROG THEOR PHYS, V63, P707, DOI 10.1143/PTP.63.707

[8] Combinatorial laser MBE synthesis of 3d ion doped epitaxial ZnO thin films [J].

Jin, ZW ;

Murakami, M ;

Fukumura, T ;

Matsumoto, Y ;

Ohtomo, A ;

Kawasaki, M ;

Koinuma, H .

JOURNAL OF CRYSTAL GROWTH, 2000, 214 :55-58

[9] OPTICAL-ABSORPTION OF CO2+ IN ZNO [J].

KOIDL, P .

PHYSICAL REVIEW B, 1977, 15 (05) :2493-2499

[10] 980-NM COMPACT OPTICAL ISOLATORS USING CD1-X-YMNXHGYTE SINGLE-CRYSTALS FOR HIGH-POWER PUMPING LASER-DIODES [J].

ONODERA, K ;

MASUMOTO, T ;

KIMURA, M .

ELECTRONICS LETTERS, 1994, 30 (23) :1954-1955

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