The effect of chemical and hydrostatic pressure has been studied systematically in a selected system belonging to the 1111 family of iron pnictide high-temperature superconductors. The results show a surprising similarity between the trend of critical temperature vs hydrostatic pressure for isoelectronic samples with different rare earths (RE) on the RE site and samples of the SmFeAsO 1-xF x series with different doping levels. These results open new questions about the underlying mechanism for superconductivity in iron pnictides. © 2011 American Chemical Society.
Pressure Effects in the Isoelectronic REFe0.85Ir0.15AsO System / B., Maroni; D., Di Castro; M., Hanfland; J., Boby; C., Vercesi; M. C., Mozzati; S., Weyeneth; H., Keller; R., Khasanov; C., Drathen; Dore, Paolo; Postorino, Paolo; L., Malavasi. - In: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. - ISSN 0002-7863. - STAMPA. - 133:10(2011), pp. 3252-3255. [10.1021/ja1098808]
Pressure Effects in the Isoelectronic REFe0.85Ir0.15AsO System
DORE, Paolo;POSTORINO, Paolo;
2011
Abstract
The effect of chemical and hydrostatic pressure has been studied systematically in a selected system belonging to the 1111 family of iron pnictide high-temperature superconductors. The results show a surprising similarity between the trend of critical temperature vs hydrostatic pressure for isoelectronic samples with different rare earths (RE) on the RE site and samples of the SmFeAsO 1-xF x series with different doping levels. These results open new questions about the underlying mechanism for superconductivity in iron pnictides. © 2011 American Chemical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
