TY - JOUR
T1 - Effects of substituting Se with Te in the FeSe compound
T2 - Structural, magnetization and Mössbauer studies
AU - Gómez, R. W.
AU - Marquina, V.
AU - Pérez-Mazariego, J. L.
AU - Escamilla, R.
AU - Escudero, R.
AU - Quintana, M.
AU - Hernández-Gómez, J. J.
AU - Ridaura, R.
AU - Marquina, M. L.
N1 - Funding Information:
Acknowledgements We would like to acknowledge Victor Hugo Ortiz for sample preparation. This work was partially supported by DGAPA-UNAM, projects IN-110808, IN-111408 and IN-227208.
PY - 2010/5
Y1 - 2010/5
N2 - Polycrystalline samples of FeSe 1-xTe x (x = 0.00, 0.25, 0.50, 0.75 and 1.00) were synthesized by solidstate reaction to study the effects of substituting Se with Te in the system. The magnetization properties of the resulting compounds were investigated and the crystallographic structures of the samples analyzed through X-ray diffraction. Mössbauer spectroscopy was used to determine the ionic state of the Fe ions and the hyperfine fields. The magnetic susceptibility curves of the samples with x = 0.25, 0.50 and 0.75 show superconducting behavior. The lattice parameters and the cell volume increase monotonically with increasing Te concentration and the Mössbauer spectra reveal the absence of internal magnetic hyperfine fields.
AB - Polycrystalline samples of FeSe 1-xTe x (x = 0.00, 0.25, 0.50, 0.75 and 1.00) were synthesized by solidstate reaction to study the effects of substituting Se with Te in the system. The magnetization properties of the resulting compounds were investigated and the crystallographic structures of the samples analyzed through X-ray diffraction. Mössbauer spectroscopy was used to determine the ionic state of the Fe ions and the hyperfine fields. The magnetic susceptibility curves of the samples with x = 0.25, 0.50 and 0.75 show superconducting behavior. The lattice parameters and the cell volume increase monotonically with increasing Te concentration and the Mössbauer spectra reveal the absence of internal magnetic hyperfine fields.
KW - Iron based superconductors
KW - Magnetic susceptibility
KW - Mössbauer effect
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=77954565273&partnerID=8YFLogxK
U2 - 10.1007/s10948-010-0764-2
DO - 10.1007/s10948-010-0764-2
M3 - Artículo
AN - SCOPUS:77954565273
SN - 1557-1939
VL - 23
SP - 551
EP - 557
JO - Journal of Superconductivity and Novel Magnetism
JF - Journal of Superconductivity and Novel Magnetism
IS - 4
ER -