Electronic manifestation of cation-vacancy-induced magnetic moments in a transparent oxide semiconductor: anatase Nb:TiO2

TitleElectronic manifestation of cation-vacancy-induced magnetic moments in a transparent oxide semiconductor: anatase Nb:TiO2
Publication TypeJournal Article
Year of Publication2009
AuthorsZhang, S, Ogale, SB, Yu, W, Gao, X, Liu, T, Ghosh, S, Das, GP, Wee, ATS, Greene, RL, Venkatesan, T
JournalAdvanced Materials
Volume21
Issue22
Pagination2282+
Date PublishedJUN
Type of ArticleArticle
ISSN0935-9648
Abstract

Nb-doped anatase TiO2 thin films grown by pulsed-laser deposition show Kondo scattering in elctronic-transport measurements, providing evidence for the formation of magnetic moments. The origin of magnetism is attributed to cation (Ti) vacancies, confirmed by X-ray absorption spectroscopy and first-principle calculations. The Ti vacancies are controlled by oxygen partial pressure during growth.

DOI10.1002/adma.200803019
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)10.857
Divison category: 
Physical and Materials Chemistry