A small history to discovery of iron based high T c superconductors and summary

Yoichi Kamihara; Hideo Hosono

doi:10.4131/jshpreview.19.97

A small history to discovery of iron based high T _c superconductors and summary

Yoichi Kamihara, Hideo Hosono

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

2 Citations (Scopus)

Abstract

We discovered iron-based layered superconductors: F-doped LaFePnO (Pn = P, As) in 2006. Several superconductors containing square iron lattice have been reported in 2008. Superconducting transition temperature (T _c) of F-doped LnFeAsO (Ln = Nd, Sm, ...) reaches ∼55 K. LaFePnO is a 3d transition-metal (T _M) based oxypnic-tides: LnT _MPnO. The crystal structure is composed of carrier conducting T _m-Pn layer and insulating Ln-O layer. Undoped LnFePO (Ln = La, Sm) shows T _c ∼3-5 K, while undoped LnFeAsO shows no T _c. The undoped LnFeAsO takes an orthorhombic crystallographic phase at temperatures below ∼160 K, F-doping suppresses the structural transition from tetragonal to orthorhombic phase, stabilizing the tetragonal lattice of LnFeAsO. F-doped LnFeAsO with tetragonal symmetry exhibits T _c.

Original language	English
Pages (from-to)	97-105
Number of pages	9
Journal	Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu
Volume	19
Issue number	2
DOIs	https://doi.org/10.4131/jshpreview.19.97
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.4131/jshpreview.19.97

Fingerprint Dive into the research topics of 'A small history to discovery of iron based high T <sub>c</sub> superconductors and summary'. Together they form a unique fingerprint.

Cite this

@article{83dbdac88e07449db0b10bbcad8b3560,

title = "A small history to discovery of iron based high T c superconductors and summary",

abstract = "We discovered iron-based layered superconductors: F-doped LaFePnO (Pn = P, As) in 2006. Several superconductors containing square iron lattice have been reported in 2008. Superconducting transition temperature (T c) of F-doped LnFeAsO (Ln = Nd, Sm, ...) reaches ∼55 K. LaFePnO is a 3d transition-metal (T M) based oxypnic-tides: LnT MPnO. The crystal structure is composed of carrier conducting T m-Pn layer and insulating Ln-O layer. Undoped LnFePO (Ln = La, Sm) shows T c ∼3-5 K, while undoped LnFeAsO shows no T c. The undoped LnFeAsO takes an orthorhombic crystallographic phase at temperatures below ∼160 K, F-doping suppresses the structural transition from tetragonal to orthorhombic phase, stabilizing the tetragonal lattice of LnFeAsO. F-doped LnFeAsO with tetragonal symmetry exhibits T c.",

author = "Yoichi Kamihara and Hideo Hosono",

year = "2009",

doi = "10.4131/jshpreview.19.97",

language = "English",

volume = "19",

pages = "97--105",

journal = "Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu",

issn = "0917-639X",

publisher = "Japan Society of High Pressure Science and Technology",

number = "2",

}

TY - JOUR

T1 - A small history to discovery of iron based high T c superconductors and summary

AU - Kamihara, Yoichi

AU - Hosono, Hideo

PY - 2009

Y1 - 2009

N2 - We discovered iron-based layered superconductors: F-doped LaFePnO (Pn = P, As) in 2006. Several superconductors containing square iron lattice have been reported in 2008. Superconducting transition temperature (T c) of F-doped LnFeAsO (Ln = Nd, Sm, ...) reaches ∼55 K. LaFePnO is a 3d transition-metal (T M) based oxypnic-tides: LnT MPnO. The crystal structure is composed of carrier conducting T m-Pn layer and insulating Ln-O layer. Undoped LnFePO (Ln = La, Sm) shows T c ∼3-5 K, while undoped LnFeAsO shows no T c. The undoped LnFeAsO takes an orthorhombic crystallographic phase at temperatures below ∼160 K, F-doping suppresses the structural transition from tetragonal to orthorhombic phase, stabilizing the tetragonal lattice of LnFeAsO. F-doped LnFeAsO with tetragonal symmetry exhibits T c.

AB - We discovered iron-based layered superconductors: F-doped LaFePnO (Pn = P, As) in 2006. Several superconductors containing square iron lattice have been reported in 2008. Superconducting transition temperature (T c) of F-doped LnFeAsO (Ln = Nd, Sm, ...) reaches ∼55 K. LaFePnO is a 3d transition-metal (T M) based oxypnic-tides: LnT MPnO. The crystal structure is composed of carrier conducting T m-Pn layer and insulating Ln-O layer. Undoped LnFePO (Ln = La, Sm) shows T c ∼3-5 K, while undoped LnFeAsO shows no T c. The undoped LnFeAsO takes an orthorhombic crystallographic phase at temperatures below ∼160 K, F-doping suppresses the structural transition from tetragonal to orthorhombic phase, stabilizing the tetragonal lattice of LnFeAsO. F-doped LnFeAsO with tetragonal symmetry exhibits T c.

UR - http://www.scopus.com/inward/record.url?scp=67650303127&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67650303127&partnerID=8YFLogxK

U2 - 10.4131/jshpreview.19.97

DO - 10.4131/jshpreview.19.97

M3 - Article

AN - SCOPUS:67650303127

VL - 19

SP - 97

EP - 105

JO - Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu

JF - Review of High Pressure Science and Technology/Koatsuryoku No Kagaku To Gijutsu

SN - 0917-639X

IS - 2