Abstract
Bismuth telluride (Bi2Te3) systems containing 2%, 4%, and 8% of iron were prepared using a low temperature wet chemical method. Iron oxide nanoparticles were formed when the samples were heated in hydrogen at 250 °C for at least six hours. The samples were characterized by x-ray diffraction, magnetization, magnetic susceptibility, x-ray photoelectron spectroscopy, Mössbauer spectroscopy, and wet chemical analysis measurements. The nanoparticles of iron oxide were identified as γ-Fe2O3 with a particle size of ~5 nm.
Similar content being viewed by others
References
J.J. Ritter: A novel synthesis of polycrystalline bismuth telluride. Inorg. Chem.336419 (1994)
H.T. Zhang, X.G. Luo, C.H. Wang, Y.M. Xiong, S.Y. Li, X.H. Chen: Characterization of nanocrystalline bismuth telluride Bi2Te3 synthesized by a hydrothermal method. J. Cryst. Growth265558 (2004)
Y.L. Chen, J.G. Analytis, J-H. Chu, Z.K. Liu, S-K. Mo, X.L. Qi, H.J. Zhang, D.H. Lu, X. Dai, Z. Fang, S.C. Zhang, I.R. Fisher, Z. Hussain, Z-X. Shen: Experimental realization of a three-dimensional topological insulator, Bi2Te3. Science325178 (2009)
L.D. Dudkin, L.I. Petrova, V.M. Sokolova: Physicochemical processes at the Bi2Te2.4Se0.6/Fe contact. Inorg. Mater.35676 (1999)
V.A. Kulbachinskii, A.Y. Kaminskii, K. Kindo, Y. Narumi, K. Suga, P. Lostak, P. Svanda: Ferromagnetism in new diluted magnetic semiconductor Bi2-xFexTe3. Physica B311292 (2002)
W. Min, C. Lee, Y. Park, I. Park: Fabrication and thermoelectric properties of p-type Bi1Sb4Te7.5 alloy doped with Fe3O4. Mater. Sci. Forum510-5111086 (2006)
A.N. Thorpe, F.E. Senftle, J.R. Grant: Magnetic study of magnetite in the Tagish Lake meteorite. Meteorit. Planet. Sci.37763 (2002)
A.N. Thorpe, F.E. Senfle, M. Holt, J. Grant, W. Lowe, H. Anderson, E. Williams, C.L. Monkres, A. Barkatt: Magnetization, micro-x-ray fluorescence, and transmission electron microscopy studies of low concentrations of nanoscale Fe3O4 particles in epoxy resin. J. Mater. Res.152488 (2000)
S.J. Lee, J.R. Jeong, S.C. Shin, J.C. Kim, J.D. Kim: Synthesis and characterization of superparamagnetic nanoparticles prepared by coprecipitation technique. J. Magn. Magn. Mater.282147 (2004)
W. Zhou, K. Tang, S. Zeng, Y. Qi: Room temperature synthesis of rod-like FeC2O4·2H2O and its transition to maghemite, magnetite and hematite nanorods through controlled thermal decomposition. Nanotechnology19065602 (2008)
G.F. Goya, T.S. Berquo, F.C. Fonseca: Static and dynamic magnetic properties of spherical magnetite nanoparticles. J. Appl. Phys.943520 (2003)
Y. Gao, S.A. Chambers: Heteroepitaxial growth of α-Fe2O3, γ-Fe2O3, and Fe3O4 thin films by oxygen-plasma-assisted molecular-beam epitaxy. J. Cryst. Growth174446 (1987)
J.M.D. Coey: Magnetic properties of iron in soil iron oxides and clay minerals Iron in Soils and Clay Mineralsedited by J.W. Stucky, B.A. Goodman, and U. Schwertmann (D. Reidel Publishing Company, Boston, MA 1988)397–466
H. Soffel Paleomagnetism and Archaeomagnetism(Springer, Berlin 1991)
M.J. Graham, D.A. Channing, G.A. Swallow, R.D. Jones: A Mössbauer study of the reduction of hematite in hydrogen at 535 °C. J. Mater. Sci.101175 (1975)
H. Itoh, T. Sugimoto: Synthesis of monodispersed magnetic particles by the sol-gel method and their magnetic properties. Stud. Surf. Sci. Catal.132251 (2001)
O. Baudisch, W.H. Albrecht: γ-ferric oxide hydrate. J. Am. Chem. Soc.54943 (1932)
R.M. Cornell, U. Schwertmann The Iron Oxides2nd ed. (Wiley-VCH, Weinheim, Germany 2003)
J-L. Girardet, J.J. Lawrence: A crystallographic study of the inorganic core of the ferritin macromolecule. Bull. Soc. Fr. Mineral. Cristallogr.91440 (1968)
R.A. Eggleton, R.W. Fitzpatrick: New data and a revised structural model for ferrihydrite. Clays Clay Miner.36111 (1988)
L. Mazzetti, P.J. Thistlewaite: Raman spectra and thermal transformations of ferrihydrite and schwertmannite. J. Raman Spectrosc.33104 (2002)
V. Barrón, J. Torrent: Evidence for a simple pathway to maghemite in Earth and Mars soils. Geochim. Cosmochim. Acta662801 (2002)
V. Barrón, J. Torrent, E. de Grave: Hydromaghemite, an intermediate in the hydrothermal transformation of 2-line ferrihydrite into hematite. Am. Mineral.881679 (2003)
Q. Liu, V. Barrón, J. Torrent, S.G. Eeckhout, C. Deng: Magnetism of intermediate hydromagnetite in the transformation of 2-line ferrihydrite into hematite and its paleoenvironmental implications. J. Geophys. Res. B: Solid Earth113, (1) B01103/1 (2008)
E. Wolska, W. Szajda, P. Piszora: Effect of the anionic sublattice hydroxylation on the goethite → maghemite transformation in the AlxFe1-xOOH system. Mater. Lett.21191 (1994)
E. Tronc, J.P. Jolivet: Surface effects on magnetically coupled iron oxide (“γ-Fe2O3”) colloids. Hyperfine Interact.28525 (1986)
P.S. Sidhu: Transformation of trace element-substituted maghemite to hematite. Clays Clay Miner.3631 (1988)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Catchings, R.M., Thorpe, A.N., Grant, J.R. et al. Formation of maghemite nanoparticles in bismuth telluride materials containing iron. Journal of Materials Research 25, 2042–2046 (2010). https://doi.org/10.1557/JMR.2010.0259
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.2010.0259