論文

査読有り
2009年8月

Effect of substrate temperature on the room-temperature ferromagnetism of Cu-doped ZnO films

JOURNAL OF CRYSTAL GROWTH
  • Fan-Yong Ran
  • ,
  • Masaki Tanemura
  • ,
  • Yasuhiko Hayashi
  • ,
  • Takehiko Hihara

311
17
開始ページ
4270
終了ページ
4274
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jcrysgro.2009.07.008
出版者・発行元
ELSEVIER SCIENCE BV

Wurtzite structure ZnO films doped with similar to 2 at% Cu were deposited at substrate temperatures (T-s) from 350 to 600 degrees C by helicon magnetton sputtering. All the films exhibited room-temperature (RT) ferromagnetism (FM) and the maximum saturation magnetization (M-s) was 1.2 emu/cm(3) (similar to 0.15 mu(B)/Cu). Cu ions were mainly in a divalent state as identified by X-ray photoelectron spectroscopy. FM tended to increase with decreasing T-s, and vacuum annealing enhanced the M-s. These results suggested that oxygen vacancies and/or zinc interstitials might contribute to the ferromagnetic performance. Thus, the observed FM was explained in terms of the defect related mechanism. (C) 2009 Elsevier B.V. All rights reserved.

リンク情報
DOI
https://doi.org/10.1016/j.jcrysgro.2009.07.008
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000269992200021&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-68549083537&partnerID=MN8TOARS
URL
http://orcid.org/0000-0002-4113-5548
ID情報
  • DOI : 10.1016/j.jcrysgro.2009.07.008
  • ISSN : 0022-0248
  • ORCIDのPut Code : 24004596
  • SCOPUS ID : 68549083537
  • Web of Science ID : WOS:000269992200021

エクスポート
BibTeX RIS