Substrate effects on the room-temperature ferromagnetism in Co-doped TiO2 thin films grown by pulsed laser deposition
作者： Hoa Hong Nguyen , W Prellier , Joe Sakai , Antoine Ruyter , None
DOI: 10.1063/1.1669111
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摘要: Co:TiO2 films were fabricated by laser ablation on Si, LaAlO3 (LAO), and SrTiO3 (STO) substrates from a ceramic target. Films all types of have Curie temperature (TC) above 400 K. All are highly crystallized with different structures. While Si rutile, LAO STO single phased anatase. Due to the lattice mismatch, grown under same growth conditions LAO, saturation magnetization coercivity. Co atoms mostly localized near surface films, magnetic measurements suggested that ferromagnetism unlikely originates clusters.
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C. Lanci, J. P. Buban, N. D. Browning, V. N. Kulkarni, J. Higgins, R. P. Sharma, R. L. Greene, T. Venkatesan, S. R. Shinde, S. B. Ogale, S. Das Sarma, J. R. Simpson, H. D. Drew, S. E. Lofland, Ferromagnetism in laser deposited anatase Ti 1-x Co x O 2-δ films Physical Review B. ,vol. 67, pp. 115211- ,(2003) , 10.1103/PHYSREVB.67.115211
D. H. Kim, J. S. Yang, K. W. Lee, S. D. Bu, T. W. Noh, S.-J. Oh, Y.-W. Kim, J.-S. Chung, H. Tanaka, H. Y. Lee, T. Kawai, Formation of Co nanoclusters in epitaxial Ti0.96Co0.04O2 thin films and their ferromagnetism Applied Physics Letters. ,vol. 81, pp. 2421- 2423 ,(2002) , 10.1063/1.1509477
Yuji Matsumoto, Makoto Murakami, Tomoji Shono, Tetsuya Hasegawa, Tomoteru Fukumura, Masashi Kawasaki, Parhat Ahmet, Toyohiro Chikyow, Shin-ya Koshihara, Hideomi Koinuma, Room-Temperature Ferromagnetism in Transparent Transition Metal-Doped Titanium Dioxide Science. ,vol. 291, pp. 854- 856 ,(2001) , 10.1126/SCIENCE.1056186
Wan Kyu Park, Ricardo J. Ortega-Hertogs, Jagadeesh S. Moodera, Alex Punnoose, M. S. Seehra, Semiconducting and ferromagnetic behavior of sputtered Co-doped TiO2 thin films above room temperature Journal of Applied Physics. ,vol. 91, pp. 8093- 8095 ,(2002) , 10.1063/1.1452650
S. A. Chambers, S. Thevuthasan, R. F. C. Farrow, R. F. Marks, J. U. Thiele, L. Folks, M. G. Samant, A. J. Kellock, N. Ruzycki, D. L. Ederer, U. Diebold, Epitaxial growth and properties of ferromagnetic co-doped TiO2 anatase Applied Physics Letters. ,vol. 79, pp. 3467- 3469 ,(2001) , 10.1063/1.1420434
Yuji Matsumoto, Ryota Takahashi, Makoto Murakami, Takashi Koida, Xiao-Juan Fan, Tetsuya Hasegawa, Tomoteru Fukumura, M. Kawasaki, Shin-Ya Koshihara, Hideomi Koinuma, Ferromagnetism in Co-Doped TiO2 Rutile Thin Films Grown by Laser Molecular Beam Epitaxy Japanese Journal of Applied Physics. ,vol. 40, ,(2001) , 10.1143/JJAP.40.L1204
SA Chambers, T Droubay, CM Wang, AS Lea, RFC Farrow, L Folks, V Deline, S Anders, None, Clusters and magnetism in epitaxial Co-doped TiO2 anatase Applied Physics Letters. ,vol. 82, pp. 1257- 1259 ,(2003) , 10.1063/1.1556173
Nguyen Hoa Hong, Joe Sakai, W. Prellier, Awatef Hassini, Co distribution in ferromagnetic rutile Co-doped TiO2 thin films grown by laser ablation on silicon substrates Applied Physics Letters. ,vol. 83, pp. 3129- 3131 ,(2003) , 10.1063/1.1619227
P. A. Stampe, R. J. Kennedy, Yan Xin, J. S. Parker, Investigation of the cobalt distribution in TiO2:Co thin films Journal of Applied Physics. ,vol. 92, pp. 7114- 7121 ,(2002) , 10.1063/1.1521259
D. H. Kim, J. S. Yang, K. W. Lee, S. D. Bu, D.-W. Kim, T. W. Noh, S.-J. Oh, Y.-W. Kim, J.-S. Chung, H. Tanaka, H. Y. Lee, T. Kawai, J. Y. Won, S. H. Park, J. C. Lee, Investigations on the nature of observed ferromagnetism and possible spin polarization in Co-doped anatase TiO2 thin films Journal of Applied Physics. ,vol. 93, pp. 6125- 6132 ,(2003) , 10.1063/1.1568524