Electronic structure studies of Fe doped CeO2 thin films by resonance photoemission spectroscopy

被引：27

作者：

Khare, Amit ^{[2
]}

Choudhary, R. J. ^{[1
]}

Phase, D. M. ^{[1
]}

Sanyal, Sankar P. ^{[2
]}

机构：

[1] UGC DAE Consortium Sci Res, Indore 452017, Madhya Pradesh, India

[2] Barkatullah Univ, Dept Phys, Bhopal 462026, India

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 12期

关键词：

ROOM-TEMPERATURE FERROMAGNETISM; OXIDE; SURFACES; SYSTEMS; ZNO;

D O I：

10.1063/1.3594717

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the modification in the electronic properties of pulsed laser deposited CeO2 thin films due to Fe doping (2 and 6 at %), with the help of x-ray photoemission spectroscopy (XPS) and resonance photoemission spectroscopy (RPES) measurements. XPS results indicate the ionic state of Fe in the Fe doped films, ruling out the possibility of Fe metallic clusters. Valence band spectra of CeO2 show an additional feature after Fe doping, suggesting its incorporation in the CeO2 matrix. RPES studies on these films reveal the hybridization between oxygen vacancy induced Ce localized states and Fe derived states. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3594717]

引用

页数：5

共 29 条

[1] Two magnetic regimes in doped ZnO corresponding to a dilute magnetic semiconductor and a dilute magnetic insulator [J].

Behan, A. J. ;

Mokhtari, A. ;

Blythe, H. J. ;

Score, D. ;

Xu, X-H. ;

Neal, J. R. ;

Fox, A. M. ;

Gehring, G. A. .

PHYSICAL REVIEW LETTERS, 2008, 100 (04)

[2] SATELLITE STRUCTURE IN X-RAY PHOTOELECTRON-SPECTRA OF SOME BINARY AND MIXED OXIDES OF LANTHANUM AND CERIUM [J].

BURROUGHS, P ;

HAMNETT, A ;

ORCHARD, AF ;

THORNTON, G .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1976, (17) :1686-1698

[3] Structure and photoluminescence properties of Fe-doped ZnO thin films [J].

Chen, A. J. ;

Wu, X. M. ;

Sha, Z. D. ;

Zhuge, L. J. ;

Meng, Y. D. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (22) :4762-4765

[4] Room temperature ferromagnetism in co-doped CeO2 films on Si(001) [J].

Fernandes, V. ;

Klein, J. J. ;

Mattoso, N. ;

Mosca, D. H. ;

Silveira, E. ;

Ribeiro, E. ;

Schreiner, W. H. ;

Varalda, J. ;

de Oliveira, A. J. A. .

PHYSICAL REVIEW B, 2007, 75 (12)

[5] Role of charge carriers for ferromagnetism in cobalt-doped rutile TiO2 [J].

Fukumura, T. ;

Toyosaki, H. ;

Ueno, K. ;

Nakano, M. ;

Kawasaki, M. .

NEW JOURNAL OF PHYSICS, 2008, 10

[6]

GSCHNEIDER KA, 1979, HDB PHYS CHEM RARE E, V3, pCH27

[7] Origin of magnetism in cobalt-doped indium tin oxide thin films [J].

Hakimi, A. M. H. R. ;

Schoofs, F. ;

Bali, R. ;

Stelmashenko, N. A. ;

Blamire, M. G. ;

Langridge, S. ;

Cavill, S. A. ;

van der Laan, G. ;

Dhesi, S. S. .

PHYSICAL REVIEW B, 2010, 82 (14)

[8] Resonance photoemission studies of (111) oriented CeO2 thin film grown on Si (100) substrate by pulsed laser deposition [J].

Khare, Amit ;

Choudhary, R. J. ;

Bapna, Komal ;

Phase, D. M. ;

Sanyal, Sankar P. .

JOURNAL OF APPLIED PHYSICS, 2010, 108 (10)

[9] A resonant photoelectron spectroscopy study of Sn(Ox) doped CeO2 catalysts [J].

Matolin, V. ;

Cabala, M. ;

Chab, V. ;

Matolinova, I. ;

Prince, K. C. ;

Skoda, M. ;

Sutara, F. ;

Skala, T. ;

Veltruska, K. .

SURFACE AND INTERFACE ANALYSIS, 2008, 40 (3-4) :225-230

[10] Photoemission spectroscopy study of Cu/CeO2 systems:: Cu/CeO2 nanosized catalyst and CeO2(111)/CU(111) inverse model catalyst [J].

Matolin, Vladimir ;

Sedlacek, Libor ;

Matolinova, Iva ;

Sutara, Frantiek ;

Skala, Tomas ;

Smid, Bretislav ;

Libra, Jiri ;

Nehasil, Vaclav ;

Prince, Kevin C. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (10) :3751-3758

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