Common crystalline and magnetic structure of superconducting A2Fe4Se5 (A=K,Rb,Cs,Tl) single crystals measured using neutron diffraction

F. Ye; S. Chi; Wei Bao; X. F. Wang; J. J. Ying; X. H. Chen; H. D. Wang; C. H. Dong; Minghu Fang

doi:10.1103/PhysRevLett.107.137003

Common crystalline and magnetic structure of superconducting A₂Fe₄Se₅ (A=K,Rb,Cs,Tl) single crystals measured using neutron diffraction

F. Ye, S. Chi, Wei Bao^*, X. F. Wang, J. J. Ying, X. H. Chen, H. D. Wang, C. H. Dong, Minghu Fang

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

218 Citations (Scopus)

Abstract

Single-crystal neutron diffraction studies on superconductors A₂Fe₄Se₅ , where A=Rb, Cs, (Tl, Rb), and (Tl, K) (T_c ∼30K), uncover the same Fe vacancy ordered crystal structure and the same block antiferromagnetic order as in K₂Fe₄Se₅ . The Fe order-disorder transition occurs at T_S =500-578K, and the antiferromagnetic transition at T_N =471-559K with an ordered magnetic moment ∼3.3μ_B / Fe at 10 K. Thus, all recently discovered A intercalated iron selenide superconductors share the common crystalline and magnetic structure, which are very different from previous families of Fe-based superconductors, and constitute a distinct new 245 family.

Original language	English
Article number	137003
Journal	Physical Review Letters
Volume	107
Issue number	13
Online published	19 Sept 2011
DOIs	https://doi.org/10.1103/PhysRevLett.107.137003
Publication status	Published - 23 Sept 2011
Externally published	Yes

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@article{23184496210a45139ef479998a0e6f17,

title = "Common crystalline and magnetic structure of superconducting A2Fe4Se5 (A=K,Rb,Cs,Tl) single crystals measured using neutron diffraction",

abstract = "Single-crystal neutron diffraction studies on superconductors A2Fe4Se5 , where A=Rb, Cs, (Tl, Rb), and (Tl, K) (Tc ∼30K), uncover the same Fe vacancy ordered crystal structure and the same block antiferromagnetic order as in K2Fe4Se5 . The Fe order-disorder transition occurs at TS =500-578K, and the antiferromagnetic transition at TN =471-559K with an ordered magnetic moment ∼3.3μB / Fe at 10 K. Thus, all recently discovered A intercalated iron selenide superconductors share the common crystalline and magnetic structure, which are very different from previous families of Fe-based superconductors, and constitute a distinct new 245 family. ",

author = "F. Ye and S. Chi and Wei Bao and Wang, {X. F.} and Ying, {J. J.} and Chen, {X. H.} and Wang, {H. D.} and Dong, {C. H.} and Minghu Fang",

year = "2011",

month = sep,

day = "23",

doi = "10.1103/PhysRevLett.107.137003",

language = "English",

volume = "107",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

TY - JOUR

T1 - Common crystalline and magnetic structure of superconducting A2Fe4Se5 (A=K,Rb,Cs,Tl) single crystals measured using neutron diffraction

AU - Ye, F.

AU - Chi, S.

AU - Bao, Wei

AU - Wang, X. F.

AU - Ying, J. J.

AU - Chen, X. H.

AU - Wang, H. D.

AU - Dong, C. H.

AU - Fang, Minghu

PY - 2011/9/23

Y1 - 2011/9/23

N2 - Single-crystal neutron diffraction studies on superconductors A2Fe4Se5 , where A=Rb, Cs, (Tl, Rb), and (Tl, K) (Tc ∼30K), uncover the same Fe vacancy ordered crystal structure and the same block antiferromagnetic order as in K2Fe4Se5 . The Fe order-disorder transition occurs at TS =500-578K, and the antiferromagnetic transition at TN =471-559K with an ordered magnetic moment ∼3.3μB / Fe at 10 K. Thus, all recently discovered A intercalated iron selenide superconductors share the common crystalline and magnetic structure, which are very different from previous families of Fe-based superconductors, and constitute a distinct new 245 family.

AB - Single-crystal neutron diffraction studies on superconductors A2Fe4Se5 , where A=Rb, Cs, (Tl, Rb), and (Tl, K) (Tc ∼30K), uncover the same Fe vacancy ordered crystal structure and the same block antiferromagnetic order as in K2Fe4Se5 . The Fe order-disorder transition occurs at TS =500-578K, and the antiferromagnetic transition at TN =471-559K with an ordered magnetic moment ∼3.3μB / Fe at 10 K. Thus, all recently discovered A intercalated iron selenide superconductors share the common crystalline and magnetic structure, which are very different from previous families of Fe-based superconductors, and constitute a distinct new 245 family.

UR - http://www.scopus.com/inward/record.url?scp=80053114050&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-80053114050&origin=recordpage

U2 - 10.1103/PhysRevLett.107.137003

DO - 10.1103/PhysRevLett.107.137003

M3 - RGC 21 - Publication in refereed journal

SN - 0031-9007

VL - 107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 137003

ER -

Common crystalline and magnetic structure of superconducting A₂Fe₄Se₅ (A=K,Rb,Cs,Tl) single crystals measured using neutron diffraction

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Common crystalline and magnetic structure of superconducting A2Fe4Se5 (A=K,Rb,Cs,Tl) single crystals measured using neutron diffraction

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Common crystalline and magnetic structure of superconducting A₂Fe₄Se₅ (A=K,Rb,Cs,Tl) single crystals measured using neutron diffraction