New Li-Ethylenediamine-Intercalated superconductor Lix(C 2H8N2)yFe2-zSe 2 with Tc = 45K

Takehiro Hatakeda; Takashi Noji; Takayuki Kawamata; Masatsune Kato; Yoji Koike

doi:10.7566/JPSJ.82.123705

New Li-Ethylenediamine-Intercalated superconductor Li_x(C ₂H₈N₂)_yFe_2-zSe ₂ with T_c = 45K

Takehiro Hatakeda, Takashi Noji, Takayuki Kawamata, Masatsune Kato, Yoji Koike

ENG - Applied Physics

Research output: Contribution to journal › Article › peer-review

81 Citations (Scopus)

Abstract

A new iron-based superconductor Li_x(C₂H ₈N₂)_yFe_2-zSe₂ with T _c = 45K has successfully been synthesized via intercalation of dissolved lithium metal in ethylenediamine. The distance between neighboring Fe layers is 10.37 Å and much larger than those of FeSe with T_c = 8K and K_xFe₂Se₂ with T_c ~ 30 K. It seems that the high-T_c of Li_x(C₂H ₈N₂)_yFe_2-zSe₂ is caused by the possible two-dimensional electronic structure due to the large c-axis length.

Original language	English
Article number	123705
Journal	journal of the physical society of japan
Volume	82
Issue number	12
DOIs	https://doi.org/10.7566/JPSJ.82.123705
Publication status	Published - 2013 Dec

Keywords

Ethylenediamine
FeSe
Intercalation
Lithium
Superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.7566/JPSJ.82.123705

Cite this

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title = "New Li-Ethylenediamine-Intercalated superconductor Lix(C 2H8N2)yFe2-zSe 2 with Tc = 45K",

abstract = "A new iron-based superconductor Lix(C2H 8N2)yFe2-zSe2 with T c = 45K has successfully been synthesized via intercalation of dissolved lithium metal in ethylenediamine. The distance between neighboring Fe layers is 10.37 {\AA} and much larger than those of FeSe with Tc = 8K and KxFe2Se2 with Tc ~ 30 K. It seems that the high-Tc of Lix(C2H 8N2)yFe2-zSe2 is caused by the possible two-dimensional electronic structure due to the large c-axis length.",

keywords = "Ethylenediamine, FeSe, Intercalation, Lithium, Superconductivity",

author = "Takehiro Hatakeda and Takashi Noji and Takayuki Kawamata and Masatsune Kato and Yoji Koike",

year = "2013",

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language = "English",

volume = "82",

journal = "Journal of the Physical Society of Japan",

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T1 - New Li-Ethylenediamine-Intercalated superconductor Lix(C 2H8N2)yFe2-zSe 2 with Tc = 45K

AU - Hatakeda, Takehiro

AU - Noji, Takashi

AU - Kawamata, Takayuki

AU - Kato, Masatsune

AU - Koike, Yoji

PY - 2013/12

Y1 - 2013/12

N2 - A new iron-based superconductor Lix(C2H 8N2)yFe2-zSe2 with T c = 45K has successfully been synthesized via intercalation of dissolved lithium metal in ethylenediamine. The distance between neighboring Fe layers is 10.37 Å and much larger than those of FeSe with Tc = 8K and KxFe2Se2 with Tc ~ 30 K. It seems that the high-Tc of Lix(C2H 8N2)yFe2-zSe2 is caused by the possible two-dimensional electronic structure due to the large c-axis length.

AB - A new iron-based superconductor Lix(C2H 8N2)yFe2-zSe2 with T c = 45K has successfully been synthesized via intercalation of dissolved lithium metal in ethylenediamine. The distance between neighboring Fe layers is 10.37 Å and much larger than those of FeSe with Tc = 8K and KxFe2Se2 with Tc ~ 30 K. It seems that the high-Tc of Lix(C2H 8N2)yFe2-zSe2 is caused by the possible two-dimensional electronic structure due to the large c-axis length.

KW - Ethylenediamine

KW - FeSe

KW - Intercalation

KW - Lithium

KW - Superconductivity

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