Synthesis of New Lithium- and Monoamine-Intercalated Superconductors Li$_x$(C$_n$H$_{2n+3}$N)$_y$Fe$_{1-z}$Se ($n$ = 6, 8, 18) with the Dramatically Expanded Interlayer Spacing

Chika Sakamoto; Takashi Noji; Kazuki Sato; Takayuki Kawamata; Masatsune Kato

doi:10.7566/jpsj.89.115002

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arXiv · 2012.08145

Synthesis of New Lithium- and Monoamine-Intercalated Superconductors Li$_x$(C$_n$H$_{2n+3}$N)$_y$Fe$_{1-z}$Se ($n$ = 6, 8, 18) with the Dramatically Expanded Interlayer Spacing

Chika Sakamoto·Takashi Noji·Kazuki Sato·Takayuki Kawamata·Masatsune Kato

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Abstract

New superconductors, Li$_x$(C$_n$H$_{2n+3}$N)$_y$Fe$_{1-z}$Se ($n$ = 6, 8, 18), have been synthesized via the co-intercalation of linear monoamines together with Li into FeSe. The distance between neighboring Fe layers expands up to 55.7 {\AA} for n = 18, which is much larger than the previous record of 19 {\AA} in the FeSe-based intercalation superconductors. Tc remains saturated at $\sim$42 K.

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Chika Sakamoto, Takashi Noji, Kazuki Sato, Takayuki Kawamata, Masatsune Kato. 2020-12-15. Synthesis of New Lithium- and Monoamine-Intercalated Superconductors Li$_x$(C$_n$H$_{2n+3}$N)$_y$Fe$_{1-z}$Se ($n$ = 6, 8, 18) with the Dramatically Expanded Interlayer Spacing. https://doi.org/10.7566/jpsj.89.115002

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