Abstract
Phase formation in the Mn doped β-FeSi2 system (Fe1− xMn x Si2 with 0.00≤x≤0.24) was studied using X-ray diffraction and Mössbauer spectroscopy. Samples were prepared by the simultaneous mill of pure Si, Mn and Fe under Ar atmosphere followed by an annealing at 1,123 K during 4 h at 1×10−7 Torr. After milling, an admixture of β-FeSi2, α-FeSi2 and ɛ-FeSi phases was present while α-FeSi2 disappeared after annealing, resulting β-FeSi2 the main phase. Depending on Mn concentration, small amounts of ɛ-FeSi and Si segregation were also observed. A preferential substitution of Fe atoms by Mn ones in the FeII site of the β-FeSi2 regular lattice was inferred from the Mössbauer results.
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References
Degroote, S., Kobayashi, T., Dekoster, J., Vantomme, A., Langouche, G.: Depth selective investigation of Fe-silicides formed after molecular beam epitaxy, using conversion electron Mössbauer spectroscopy. Mater. Res. Soc. Symp. Proc. 337, 685–688 (1994)
Reuther, H., Dobler, M.: CEMS and AES investigations on iron silicides. Surf. Interface Anal. 24, 411–415 (1996)
Disalvo, F.J.: Thermoelectric cooling and power generation. Science 285, 703–706 (1999)
Ohta, Y., Miura, S., Mishima, Y.: Thermoelectric semiconductor iron disilicides produced by sintering elemental powders. Intermetallics 7, 1203–1210 (1999)
Tani, J.I., Kido, H.: Electrical properties of Cr-doped β-FeSh2. Jpn. J. Appl. Phys. 38, 2717–2720 (1999)
Chen, H.Y., Zhao, X.B., Zhu, T.J., Lu, Y.F., Ni, H.L., Müller, E.: Influence of nitrogenizing and Al-doping on microstructures and thermoelectric properties of iron disilicide materials. Intermetallics 13, 704–709 (2005)
Christensen, N.E.: Electronic structure of β-FeSi2. Phys. Rev. B 42, 7148–7153 (1990)
Kondo, S., Hasaka, M., Morimura, T., Miyajima, Y.: Mössbauer effect of Co-or Mn-doped β-FeSi2. Physica B 198, 332–336 (1994)
Tani, J., Kido, H.: First principle calculation of the geometrical and electronic structure of impurity-doped β-FeSi2 semiconductors, J. Solid State Chem. 163, 248–252 (2002)
Fanciulli, M., Zenkevich, A., Meyer, G., Vanzini, C., Tresso, E., Baricco, M.: Structural and optical properties of Fe1−xMxSi2 thin films (M=Co, Mn; 0≤x≤0.20). Microelectron. Eng. 55, 233–241 (2001)
Hasaka, M., Morimura, T., Harano, T., Kondo, S.: Configurations of Pt and Mn in iron disilicides. Mater. Charact. 35, 195–198 (1995)
Desimoni, J., Cotes, S.M., Taylor, M.A., Martínez, J., Runco, J.: Phase stabilization in the Fe1−xMnxSi2 system induced by ball milling. Intermetallics 15, 1297–1302 (2007)
Powder Diffraction Files of the Joint Committee on Powder Diffraction Data — International Centre for Diffraction Data. Georgia Institute 123 of Technology, Atlanta, GA (1966). PCPDFWIN (version 1.10, 1995)
Fanciulli, M., Rosenblad, C., Weber, G., von Känel, H., Onda, N.: Conversion electron Mössbauer spectroscopy study of iron disilicide films grown by MBE. Thin Solid Films 275, 8–11 (1996)
Desimoni, J., Sánchez, F.H.: Overview of the Mössbauer results obtained on silicon-rich iron silicide epitaxial phases on Si. Hyperfine Interact. 122, 277–307 (1999)
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Martínez, J., Runco, J., Cotes, S.M., Taylor, M.A., Desimoni, J. (2008). Evolution under thermal annealing of Mn-doped iron disilicides obtained by ball milling. In: Pasquevich, A., Rentería, M., Saitovitch, E.B., Petrilli, H. (eds) HFI/NQI 2007. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85320-6_39
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DOI: https://doi.org/10.1007/978-3-540-85320-6_39
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