High-pressure neutron diffraction study of incommensurate magnetic ordering in Fe1.141Te.
Magnetisation and resistivity measurements as well as high-pressure neutron diffraction have shown the existence of novel pressure induced phases at low temperature in Fe1.087Te. A transition from commensurate to incommensurate order was observed at about 1.6 GPa and 6 K and and the magnetic order is suppressed at about 2.8 GPa. The iron richer compound Fe1.141Te shows incommensurate magnetic ordering below 63 K at ambient pressure. It is proposed to study the incommensurately magnetically ordered phase of Fe1.141Te at high pressures. The experiment will yield information on the stability as well as on the pressure dependence of the magnetic propagation vector of this phase and the results are of interest in relation to the understanding of pressure-induced superconductivity in the iron pnictides e.g. BaFe2As2.
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JORGENSEN J.- E. and Thomas C. Hansen. (2013). High-pressure neutron diffraction study of incommensurate magnetic ordering in Fe1.141Te.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2296
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