科研之友
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摘要
A polycrystalline FeTe1-xSx sample was synthesized using a solid-state reaction method. Magnetization data obtained in the zero-field cooling and field-cooling regimes revealed a superconductivity transition with the critical temperature T-c approximate to 10K. Fe-57 Mossbauer spectra were recorded in the temperature interval from 5.4 to 300 K in transmission geometry to reveal three components below 77 K: two magnetic and one paramagnetic. One of the magnetic components and the paramagnetic component belong to the FeTe1-xSx phase. Unusual behavior of hyperfine field for the smaller of the magnetic components was observed, signifying possible competition between antiferromagnetism and superconductivity.
- 出版日期2013-3
