Mechanosynthesis of Fe-doped SnO2 nanoparticles

被引：26

作者：

Cabrera, A. F. ^{[1
]}

Navarro, A. M. Mudarra

Torres, C. E. Rodriguez

Sanchez, F. H.

机构：

[1] Natl Univ La Plata, Fac Ciencias Exactas, Dept Fis, RA-1900 La Plata, Argentina

[2] Consejo Nacl Invest Cient & Tecn, IFLP, RA-1900 La Plata, Argentina

来源：

PHYSICA B-CONDENSED MATTER | 2007年 / 398卷 / 02期

关键词：

diluted magnetic semiconductors; mechanical alloying; magnetic properties; Mossbauer spectroscopy;

D O I：

10.1016/j.physb.2007.04.019

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Fe-doped nanosized SnO2, powders were prepared by mechanosynthesis using rutile SnO2 and hematite Fe2O3 Lis starting materials. The estimated grain size of the obtained rutile structure was between 10 and 20 nm. Mossbauer spectroscopy shows the presence of two interactions corresponding to 3+ and 2+ iron oxidation states with similar relative fractions. The magnetic measurements exhibit ferromagnetic- (FML) and superparamagnetic-like (SML) behavior. Evidence of a system of strongly interacting particles was found. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：215 / 218

页数：4

共 10 条

[1] A DYNAMIC STUDY OF SMALL INTERACTING PARTICLES - SUPERPARAMAGNETIC MODEL AND SPIN-GLASS LAWS [J].

DORMANN, JL ;

BESSAIS, L ;

FIORANI, D .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1988, 21 (10) :2015-2034

[2] SnO2 doped with Mn, Fe or Co:: Room temperature dilute magnetic semiconductors [J].

Fitzgerald, CB ;

Venkatesan, M ;

Douvalis, AP ;

Huber, S ;

Coey, JMD ;

Bakas, T .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) :7390-7392

[3] Transition metal-doped TiO2 and ZnO -: present status of the field [J].

Janisch, R ;

Gopal, P ;

Spaldin, NA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (27) :R657-R689

[4]

Long G., 1987, MOSSBAUER SPECTROSCO, V2, P507

[5] Development of high-temperature ferromagnetism in SnO2 and paramagnetism in SnO by Fe doping -: art. no. 054402 [J].

Punnoose, A ;

Hays, J ;

Thurber, A ;

Engelhard, MH ;

Kukkadapu, RK ;

Wang, C ;

Shutthanandan, V ;

Thevuthasan, S .

PHYSICAL REVIEW B, 2005, 72 (05)

[6]

Raiker Y.L., 1994, ADV CHEM PHYS, V87, P607

[7] Hydrothermal synthesis and structural characterization of (1-x)α-Fe2O3-xSnO2 nanoparticles [J].

Sorescu, M ;

Diamandescu, L ;

Tarabasanu-Mihaila, D ;

Teodorescu, VS ;

Howard, BH .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2004, 65 (05) :1021-1029

[8] DETERMINATION OF PARAMAGNETIC AND FERROMAGNETIC COMPONENTS OF MAGNETIZATION AND MAGNETORESISTANCE OF GRANULAR CO/AG FILMS [J].

STEARNS, MB ;

CHENG, YD .

JOURNAL OF APPLIED PHYSICS, 1994, 75 (10) :6894-6899

[9] Magnetic behavior of nanoclusters of Fe-doped SnO2 [J].

Torres, Claudia E. Rodriguez ;

Cabrera, A. Fabiana ;

Sanchez, Francisco H. .

PHYSICA B-CONDENSED MATTER, 2007, 389 (01) :176-179

[10]

2006, J PHYS CONDENS MATTE, V18, P6001

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