Doping-induced antiferromagnetic bicollinear insulating state and superconducting temperature of monolayer FeSe systems

Michael C. Lucking; Fawei Zheng; Myung Joon Han; Junhyeok Bang; Shengbai Zhang

doi:10.1103/PhysRevB.98.014504

Doping-induced antiferromagnetic bicollinear insulating state and superconducting temperature of monolayer FeSe systems

Michael C. Lucking
, Fawei Zheng
, Myung Joon Han
, Junhyeok Bang^*
, Shengbai Zhang

^*此作品的通讯作者

Rensselaer Polytechnic Institute
IAPCM
Korea Advanced Institute of Science and Technology
Korea Basic Science Institute

科研成果: 期刊稿件 › 文章 › 同行评审

3 引用（Scopus）

摘要

First-principles calculations of ionic-liquid-gated (Li,Fe)OHFeSe suggest a metal-insulator transition at a nominal Li/Fe ratio of 75/25 in the (Li,Fe)OH layer. While doping increases Fermi energy, the formation of an antiferromagnetic bicollinear phase is the key for the transition. It is expected that this insulating phase also exists in other FeSe systems upon heavy electron doping, and its presence can hinder the increase of superconducting temperature. These results offer clues on how to optimize superconductivity amid its interplay with magnetic properties in FeSe systems.

源语言	英语
文章编号	014504
期刊	Physical Review B
卷	98
期	1
DOI	https://doi.org/10.1103/PhysRevB.98.014504
出版状态	已出版 - 9 7月 2018
已对外发布	是

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abstract = "First-principles calculations of ionic-liquid-gated (Li,Fe)OHFeSe suggest a metal-insulator transition at a nominal Li/Fe ratio of 75/25 in the (Li,Fe)OH layer. While doping increases Fermi energy, the formation of an antiferromagnetic bicollinear phase is the key for the transition. It is expected that this insulating phase also exists in other FeSe systems upon heavy electron doping, and its presence can hinder the increase of superconducting temperature. These results offer clues on how to optimize superconductivity amid its interplay with magnetic properties in FeSe systems.",

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AU - Lucking, Michael C.

AU - Zheng, Fawei

AU - Han, Myung Joon

AU - Bang, Junhyeok

AU - Zhang, Shengbai

PY - 2018/7/9

Y1 - 2018/7/9

N2 - First-principles calculations of ionic-liquid-gated (Li,Fe)OHFeSe suggest a metal-insulator transition at a nominal Li/Fe ratio of 75/25 in the (Li,Fe)OH layer. While doping increases Fermi energy, the formation of an antiferromagnetic bicollinear phase is the key for the transition. It is expected that this insulating phase also exists in other FeSe systems upon heavy electron doping, and its presence can hinder the increase of superconducting temperature. These results offer clues on how to optimize superconductivity amid its interplay with magnetic properties in FeSe systems.

AB - First-principles calculations of ionic-liquid-gated (Li,Fe)OHFeSe suggest a metal-insulator transition at a nominal Li/Fe ratio of 75/25 in the (Li,Fe)OH layer. While doping increases Fermi energy, the formation of an antiferromagnetic bicollinear phase is the key for the transition. It is expected that this insulating phase also exists in other FeSe systems upon heavy electron doping, and its presence can hinder the increase of superconducting temperature. These results offer clues on how to optimize superconductivity amid its interplay with magnetic properties in FeSe systems.

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Doping-induced antiferromagnetic bicollinear insulating state and superconducting temperature of monolayer FeSe systems

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