Elucidating the magnetic and superconducting phases in the alkali metal intercalated iron chalcogenides
Abstract
The complex interdigitated phases have greatly frustrated attempts to document the basic features of the superconductivity in the alkali metal intercalated iron chalcogenides. Here, using elastic neutron scattering, energy-dispersive x-ray spectroscopy, and resistivity measurements, we elucidate the relations of these phases in RbxFeySe2-zSz. We find (i) the iron content is crucial in stabilizing the stripe antiferromagnetic (AF) phase with rhombic iron vacancy order (y≈1.5), the block AF phase with 5×5 iron vacancy order (y≈1.6), and the iron vacancy-free phase (y≈2); and (ii) the iron vacancy-free superconducting phase (z=0) evolves into an iron vacancy-free metallic phase with sulfur substitution (z > 1.5) due to the progressive decrease of the electronic correlation strength. Both the stripe AF phase and the block AF phase are Mott insulators. The iron-rich compounds (y > 1.6) undergo a first order transition from an iron vacancy disordered phase at high temperatures into the 5×5 iron vacancy ordered phase and the iron vacancy-free phase below Ts. Our data demonstrate that there are miscibility gaps between these three phases. The existence of the miscibility gaps in the iron content is a key to understanding the relationship between these complicated phases.
- Authors:
-
- Univ. of California, Berkeley, CA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1333659
- Alternate Identifier(s):
- OSTI ID: 1239707; OSTI ID: 1439986
- Grant/Contract Number:
- AC05-00OR22725; AC02-05CH11231; AC03-76SF008
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 7; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Wang, Meng, Yi, Ming, Tian, Wei, Bourret-Courchesne, Edith, and Birgeneau, Robert J. Elucidating the magnetic and superconducting phases in the alkali metal intercalated iron chalcogenides. United States: N. p., 2016.
Web. doi:10.1103/PhysRevB.93.075155.
Wang, Meng, Yi, Ming, Tian, Wei, Bourret-Courchesne, Edith, & Birgeneau, Robert J. Elucidating the magnetic and superconducting phases in the alkali metal intercalated iron chalcogenides. United States. https://doi.org/10.1103/PhysRevB.93.075155
Wang, Meng, Yi, Ming, Tian, Wei, Bourret-Courchesne, Edith, and Birgeneau, Robert J. Mon .
"Elucidating the magnetic and superconducting phases in the alkali metal intercalated iron chalcogenides". United States. https://doi.org/10.1103/PhysRevB.93.075155. https://www.osti.gov/servlets/purl/1333659.
@article{osti_1333659,
title = {Elucidating the magnetic and superconducting phases in the alkali metal intercalated iron chalcogenides},
author = {Wang, Meng and Yi, Ming and Tian, Wei and Bourret-Courchesne, Edith and Birgeneau, Robert J.},
abstractNote = {The complex interdigitated phases have greatly frustrated attempts to document the basic features of the superconductivity in the alkali metal intercalated iron chalcogenides. Here, using elastic neutron scattering, energy-dispersive x-ray spectroscopy, and resistivity measurements, we elucidate the relations of these phases in RbxFeySe2-zSz. We find (i) the iron content is crucial in stabilizing the stripe antiferromagnetic (AF) phase with rhombic iron vacancy order (y≈1.5), the block AF phase with 5×5 iron vacancy order (y≈1.6), and the iron vacancy-free phase (y≈2); and (ii) the iron vacancy-free superconducting phase (z=0) evolves into an iron vacancy-free metallic phase with sulfur substitution (z > 1.5) due to the progressive decrease of the electronic correlation strength. Both the stripe AF phase and the block AF phase are Mott insulators. The iron-rich compounds (y > 1.6) undergo a first order transition from an iron vacancy disordered phase at high temperatures into the 5×5 iron vacancy ordered phase and the iron vacancy-free phase below Ts. Our data demonstrate that there are miscibility gaps between these three phases. The existence of the miscibility gaps in the iron content is a key to understanding the relationship between these complicated phases.},
doi = {10.1103/PhysRevB.93.075155},
journal = {Physical Review B},
number = 7,
volume = 93,
place = {United States},
year = {Mon Feb 29 00:00:00 EST 2016},
month = {Mon Feb 29 00:00:00 EST 2016}
}
Web of Science
Works referenced in this record:
Magnetic field effect on static antiferromagnetic order and spin excitations in the underdoped iron arsenide superconductor BaFe Ni As
journal, March 2011
- Wang, Miaoyin; Luo, Huiqian; Wang, Meng
- Physical Review B, Vol. 83, Issue 9
Electronic and magnetic phase diagram in KxFe2-ySe2 superconductors
journal, January 2012
- Yan, Y. J.; Zhang, M.; Wang, A. F.
- Scientific Reports, Vol. 2, Issue 1
Superconductivity in the PbO-type structure -FeSe
journal, September 2008
- Hsu, F. -C.; Luo, J. -Y.; Yeh, K. -W.
- Proceedings of the National Academy of Sciences, Vol. 105, Issue 38
High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb) 2 Fe 4 Se 5 Superconductor
journal, December 2014
- Ye, Feng; Bao, Wei; Chi, Song-Xue
- Chinese Physics Letters, Vol. 31, Issue 12
Identification of Various Coexisting Phases in Superconducting and Non-superconducting Samples of Rb x Fe 2− y Se 2
journal, April 2015
- Kobayashi, Yoshiaki; Kototani, Shohei; Ohishi, Kazuki
- Journal of the Physical Society of Japan, Vol. 84, Issue 4
Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in K Fe Se single crystals
journal, October 2012
- Liu, Y.; Xing, Q.; Dennis, K. W.
- Physical Review B, Vol. 86, Issue 14
Structural Phase Separation in K 0.8 Fe 1.6+ x Se 2 Superconductors
journal, August 2012
- Wang, Zhi-Wei; Wang, Zhen; Song, Yuan-Jun
- The Journal of Physical Chemistry C, Vol. 116, Issue 33
Mott localization in a pure stripe antiferromagnet
journal, September 2015
- Wang, Meng; Yi, Ming; Cao, Huibo
- Physical Review B, Vol. 92, Issue 12
Two spatially separated phases in semiconducting
journal, September 2014
- Wang, Meng; Tian, Wei; Valdivia, P.
- Physical Review B, Vol. 90, Issue 12
Fe-based superconductivity with T c =31 K bordering an antiferromagnetic insulator in (Tl,K) Fe x Se 2
journal, April 2011
- Fang, Ming-Hu; Wang, Hang-Dong; Dong, Chi-Heng
- EPL (Europhysics Letters), Vol. 94, Issue 2
Phase relations in K Fe Se and the structure of superconducting K Fe Se via high-resolution synchrotron diffraction
journal, November 2012
- Shoemaker, Daniel P.; Chung, Duck Young; Claus, Helmut
- Physical Review B, Vol. 86, Issue 18
Spin waves and magnetic exchange interactions in insulating Rb0.89Fe1.58Se2
journal, September 2011
- Wang, Miaoyin; Fang, Chen; Yao, Dao-Xin
- Nature Communications, Vol. 2, Issue 1
Electronic Identification of the Parental Phases and Mesoscopic Phase Separation of Superconductors
journal, December 2011
- Chen, F.; Xu, M.; Ge, Q. Q.
- Physical Review X, Vol. 1, Issue 2
Superconductivity above 100 K in single-layer FeSe films on doped SrTiO3
journal, November 2014
- Ge, Jian-Feng; Liu, Zhi-Long; Liu, Canhua
- Nature Materials, Vol. 14, Issue 3
Nanoscale phase separation of antiferromagnetic order and superconductivity in K0.75Fe1.75Se2
journal, January 2012
- Yuan, R. H.; Dong, T.; Song, Y. J.
- Scientific Reports, Vol. 2, Issue 1
Phase Diagram of and the Suppression of its Superconducting State by an Tetrahedron Distortion
journal, September 2011
- Lei, Hechang; Abeykoon, Milinda; Bozin, Emil S.
- Physical Review Letters, Vol. 107, Issue 13
Spin waves and spatially anisotropic exchange interactions in the stripe antiferromagnet
journal, July 2015
- Wang, Meng; Valdivia, P.; Yi, Ming
- Physical Review B, Vol. 92, Issue 4
Role of the 245 phase in alkaline iron selenide superconductors revealed by high-pressure studies
journal, March 2014
- Gao, Peiwen; Yu, Rong; Sun, Liling
- Physical Review B, Vol. 89, Issue 9
Superconductivity in LiFeO Fe Se with anti-PbO-type spacer layers
journal, January 2014
- Lu, X. F.; Wang, N. Z.; Zhang, G. H.
- Physical Review B, Vol. 89, Issue 2
A Novel Large Moment Antiferromagnetic Order in K 0.8 Fe 1.6 Se 2 Superconductor
journal, August 2011
- Bao, Wei; Huang, Qing-Zhen; Chen, Gen-Fu
- Chinese Physics Letters, Vol. 28, Issue 8
Electronic and magnetic phase diagram of β-Fe1.01Se with superconductivity at 36.7 K under pressure
journal, June 2009
- Medvedev, S.; McQueen, T. M.; Troyan, I. A.
- Nature Materials, Vol. 8, Issue 8
Bandwidth and Electron Correlation-Tuned Superconductivity in
journal, December 2015
- Yi, M.; Wang, Meng; Kemper, A. F.
- Physical Review Letters, Vol. 115, Issue 25
is the Parent Compound of K-Doped Iron Selenide Superconductors
journal, July 2012
- Li, Wei; Ding, Hao; Li, Zhi
- Physical Review Letters, Vol. 109, Issue 5
Antiferromagnetic order and superlattice structure in nonsuperconducting and superconducting Rb Fe Se
journal, September 2011
- Wang, Meng; Wang, Miaoyin; Li, G. N.
- Physical Review B, Vol. 84, Issue 9
Observation of superconductivity at 30∼46K in AxFe2Se2(A = Li, Na, Ba, Sr, Ca, Yb and Eu)
journal, May 2012
- Ying, T. P.; Chen, X. L.; Wang, G.
- Scientific Reports, Vol. 2, Issue 1
Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer
journal, October 2012
- Burrard-Lucas, Matthew; Free, David G.; Sedlmaier, Stefan J.
- Nature Materials, Vol. 12, Issue 1
Superconductivity in the iron selenide
journal, November 2010
- Guo, Jiangang; Jin, Shifeng; Wang, Gang
- Physical Review B, Vol. 82, Issue 18
Intrinsic phase separation in superconducting K 0.8 Fe 1.6 Se 2 ( T c = 31.8 K) single crystals
journal, July 2011
- Ricci, Alessandro; Poccia, Nicola; Joseph, Boby
- Superconductor Science and Technology, Vol. 24, Issue 8
Correlation between superconductivity and antiferromagnetism in Rb Fe Se Te single crystals
journal, May 2012
- Gu, Dachun; Sun, Liling; Wu, Qi
- Physical Review B, Vol. 85, Issue 17
Neutron-Diffraction Measurements of an Antiferromagnetic Semiconducting Phase in the Vicinity of the High-Temperature Superconducting State of
journal, December 2012
- Zhao, Jun; Cao, Huibo; Bourret-Courchesne, E.
- Physical Review Letters, Vol. 109, Issue 26
Influence of microstructure on superconductivity in KxFe2−ySe2 and evidence for a new parent phase K2Fe7Se8
journal, May 2013
- Ding, Xiaxin; Fang, Delong; Wang, Zhenyu
- Nature Communications, Vol. 4, Issue 1
Two-dimensional Cs-vacancy superstructure in iron-based superconductor
journal, April 2015
- Porter, D. G.; Cemal, E.; Voneshen, D. J.
- Physical Review B, Vol. 91, Issue 14
Cu/Te substitution effects on superconductivity and microstructure of phase-separated K 0.8 Fe 1.75 Se 2
journal, May 2013
- Wang, Z.; Cai, Y.; Wang, Z. W.
- EPL (Europhysics Letters), Vol. 102, Issue 3
Metastable superconducting state in quenched K x Fe 2− y Se 2
journal, July 2012
- Han, Fei; Yang, Huan; Shen, Bing
- Philosophical Magazine, Vol. 92, Issue 19-21
Superconductivity in iron compounds
journal, December 2011
- Stewart, G. R.
- Reviews of Modern Physics, Vol. 83, Issue 4
Phase separation in superconducting and antiferromagnetic probed by Mössbauer spectroscopy
journal, November 2011
- Ksenofontov, Vadim; Wortmann, Gerhard; Medvedev, Sergey A.
- Physical Review B, Vol. 84, Issue 18
NMR Study in the Iron-Selenide : Determination of the Superconducting Phase as Iron Vacancy-Free
journal, June 2012
- Texier, Y.; Deisenhofer, J.; Tsurkan, V.
- Physical Review Letters, Vol. 108, Issue 23
Structure and composition of the superconducting phase in alkali iron selenide
journal, April 2014
- Carr, Scott V.; Louca, Despina; Siewenie, Joan
- Physical Review B, Vol. 89, Issue 13
Nanoscale Layering of Antiferromagnetic and Superconducting Phases in Single Crystals
journal, July 2012
- Charnukha, A.; Cvitkovic, A.; Prokscha, T.
- Physical Review Letters, Vol. 109, Issue 1
Nanoscale phase separation in the iron chalcogenide superconductor K Fe Se as seen via scanning nanofocused x-ray diffraction
journal, August 2011
- Ricci, A.; Poccia, N.; Campi, G.
- Physical Review B, Vol. 84, Issue 6
Superconductivity at 32 K in single-crystalline Rb Fe Se
journal, February 2011
- Wang, A. F.; Ying, J. J.; Yan, Y. J.
- Physical Review B, Vol. 83, Issue 6
Superconductivity at the border of electron localization and itinerancy
journal, November 2013
- Yu, Rong; Goswami, Pallab; Si, Qimiao
- Nature Communications, Vol. 4, Issue 1
The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
journal, October 2010
- Johnston, David C.
- Advances in Physics, Vol. 59, Issue 6
Colloquium : The unexpected properties of alkali metal iron selenide superconductors
journal, May 2013
- Dagotto, Elbio
- Reviews of Modern Physics, Vol. 85, Issue 2
Superconductivity at the Border of Electron Localization and Itinerancy
text, January 2011
- Yu, Rong; Goswami, Pallab; Si, Qimiao
- arXiv
Intrinsic phase separation in superconducting K0.8Fe1.6Se2 (Tc= 31.8 K) single crystals
text, January 2011
- Ricci, Alessandro; Poccia, Nicola; Joseph, Boby
- arXiv
Enhancement of superconducting transition temperature of FeSe by intercalation of a molecular spacer layer
text, January 2012
- Burrard-Lucas, Matthew; Free, David G.; Sedlmaier, Stefan J.
- arXiv
KFe_2Se_2 is the parent compound of K-doped iron selenide superconductors
text, January 2012
- Li, Wei; Ding, Hao; Li, Zhi
- arXiv
High-pressure single-crystal neutron scattering study of magnetic and Fe vacancy orders in (Tl,Rb)2Fe4Se5 superconductor
text, January 2014
- Ye, Feng; Bao, Wei; Chi, Songxue
- arXiv
Works referencing / citing this record:
Iron-Based Chalcogenide Spin Ladder BaFe2X3 (X = Se,S)
journal, November 2019
- Wu, Shan; Frandsen, Benjamin A.; Wang, Meng
- Journal of Superconductivity and Novel Magnetism, Vol. 33, Issue 1
Control of dopant crystallinity in electrochemically treated cuprate thin films
journal, June 2019
- Frano, A.; Bluschke, M.; Xu, Z.
- Physical Review Materials, Vol. 3, Issue 6
Control of dopant crystallinity in electrochemically treated cuprate thin films
text, January 2019
- Frano, Alex; Bluschke, Martin; Xu, Zhijun
- arXiv