Structural, optical and magnetic properties of Zn1-xCoxO dilute magnetic semiconductors thin films by pulsed laser deposition

被引：29
|
作者：
Yang, Shanying [1 ,2 ]
Man, B. Y. [1 ]
Liu, M. [1 ]
Chen, C. S. [1 ]
Gao, X. G. [1 ]
Wang, C. C. [1 ]
Hu, B. [1 ]
机构：
[1] Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China
[2] Laiwu Vocat & Tech Coll, Laiwu 271100, Shandong, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2010年 / 405卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Co-doped ZnO thin films; PLD; Structure; Optical and magnetic properties; ELECTRONIC-STRUCTURE; ROOM-TEMPERATURE; ZNO; FERROMAGNETISM; MN;
D O I：
10.1016/j.physb.2010.06.050
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We fabricated Zn1-xCoxO (x=0.05) thin films on sapphire (0 0 0 1) substrates by the pulsed laser deposition (PLD) method at various temperatures in an oxygen-deficient ambient. X-ray diffraction (XRD) spectra, UV-vis transmittance spectra, X-ray photoelectron spectroscopy and photoluminescence (PL) were used for charecterization. All samples possessed the wurtzite structure with the preferential c-axis orientation; PL located at about 418, 450 and 471 nm was observed; Co2+ ions incorporated into the ZnO lattice with substitution for Zn2+ ions, oxygen vacancies, oxygen antisites and Zn interstitials existed in the as-samples. Results of magnetic property of the films investigated by an alternating gradient magnetometer (AGM) indicated that all samples take on room temperature ferromagnetism. It suggested that the ferromagnetism originated from the Co2+-Co2+ exchange interaction related to oxygen vacancies, oxygen antisites and Zn interstitials. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：4027 / 4031
页数：5
相关论文
共 50 条
  • [31] Structural and optical properties of Zn1-xCoxO and ZnCo2O4 thin films
    Samanta, K.
    Bhattacharya, P.
    Katiyar, R. S.
    PROGRESS IN SEMICONDUCTOR MATERIALS V-NOVEL MATERIALS AND ELECTRONIC AND OPTOELECTRONIC APPLICATIONS, 2006, 891 : 449 - +
  • [32] Structural and optical properties of Zn1-xCoxO thin films prepared by RF reactive sputtering technique
    Savchuk, A. I.
    Stolyarchuk, I. D.
    Stefaniuk, I.
    Cieniek, B.
    Sheregii, E.
    SEMICONDUCTOR PHYSICS QUANTUM ELECTRONICS & OPTOELECTRONICS, 2014, 17 (04) : 353 - 357
  • [33] Bulk Zn1-xCoxO magnetic semiconductors prepared by hydrothermal technique
    Bouloudenine, M
    Viart, N
    Colis, S
    Dinia, A
    CHEMICAL PHYSICS LETTERS, 2004, 397 (1-3) : 73 - 76
  • [34] Structural and magnetic properties in mechanically alloyed Zn1-xCoxO semiconductor powders
    Damonte, L. C.
    Hernandez-Fenollosa, M. A.
    Meyer, M.
    Mendoza-Zelis, L.
    Mari, B.
    PHYSICA B-CONDENSED MATTER, 2007, 398 (02) : 380 - 384
  • [35] Microstructure and Magnetic Properties of Zn1-xCoxO Thin Films Grown by Sol-Gel Process
    Ko, Yoon-Duk
    Tai, Weon-Pil
    Kim, Eung-Kwon
    Kim, Ki-Chul
    Choi, Choon-Gi
    Kim, Jong-Min
    Song, Joon-Tae
    Park, Tae-Seok
    Suh, Su-Jeung
    Kim, Young-Sung
    JOURNAL OF THE KOREAN CERAMIC SOCIETY, 2005, 42 (07) : 475 - 482
  • [36] Magnetoresistance and magnetic behaviors of the oxide-diluted magnetic semiconductor Zn1-xCoxO thin films
    Kim, JH
    Choo, WK
    Kim, H
    Kim, D
    Ihm, Y
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2003, 42 : S258 - S262
  • [37] First-principles study of the effect of vacancies on magnetic properties of Zn1-xCoxO thin films
    Wang, Qian
    Sun, Qiang
    Jena, Puru
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2010, 22 (07)
  • [38] Local and global magnetic properties of Zn1-xCoxO and Mn-doped GaAs thin films
    Iwamoto, W.
    Urbano, R. R.
    Pagliuso, P. G.
    Rettori, C.
    Samanta, K.
    Bhattacharya, P.
    Katiyar, R. S.
    da Silva, J. H. D.
    Pereira, Andre
    Azevedo, G. de M.
    Oseroff, S. B.
    IEEE TRANSACTIONS ON MAGNETICS, 2006, 42 (10) : 2700 - 2702
  • [39] Synthesis and evaluation of the structural, microstructural, optical and magnetic properties of Zn1-xCoxO thin films grown onto glass substrate by ultrasonic spray pyrolysis
    Roguai, Sabrina
    Djelloul, A.
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2019, 125 (12):
  • [40] Magnetoresistance in laser-deposited Zn1-xCoxO thin films
    Kim, JH
    Kim, H
    Kim, D
    Ihm, YE
    Choo, WK
    PHYSICA B-CONDENSED MATTER, 2003, 327 (2-4) : 304 - 306
12345