A new 111 type iron pnictide superconductor LiFeP
Z. Deng, X. C. Wang, Q.Q. Liu, S. J. Zhang, Y. X. Lv, J. L. Zhu, R.C., Yu, C.Q. Jin
TL;DR
This paper reports the discovery of a novel arsenic-free 111-type iron pnictide superconductor, LiFeP, with a maximum Tc of 6K, providing insights into the superconducting mechanism of iron pnictides.
Contribution
It introduces the first arsenic-free 111-type iron pnictide superconductor, expanding the family of iron-based superconductors and offering a new platform for understanding their properties.
Findings
LiFeP exhibits superconductivity with Tc of 6K.
The compound has a Cu2Sb structure with an FeP layer.
Normal state shows itinerant electronic behavior.
Abstract
A new iron pnictide LiFeP superconductor was found. The compound crystallizes into a Cu2Sb structure containing an FeP layer showing superconductivity with maximum Tc of 6K. This is the first 111 type iron pnictide superconductor containing no arsenic. The new superconductor is featured with itinerant behavior at normal state that could helpful to understand the novel superconducting mechanism of iron pnictide compounds.
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