Phys Rev Lett. 2008 Jun 20;100(24):247002. Epub 2008 Jun 16.

Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO1-xFxFeAs.

Chen GF, Li Z, Wu D, Li G, Hu WZ, Dong J, Zheng P, Luo JL, Wang NL.

Source

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China.

Abstract

A series of layered CeO1-xFxFeAs compounds with x=0 to 0.20 are synthesized by the solid state reaction method. Similar to the LaOFeAs, the pure CeOFeAs shows a strong resistivity anomaly near 145 K, which was ascribed to the spin-density-wave instability. F doping suppresses this instability and leads to the superconducting ground state. Most surprisingly, the superconducting transition temperature could reach as high as 41 K. Such a high T_{c} strongly challenges the classic BCS theory based on the electron-phonon interaction. The closeness of the superconducting phase to the spin-density-wave instability suggests that the magnetic fluctuation plays a key role in the superconducting pairing mechanism. The study also reveals that the Ce 4f electrons form local moments and are ordered antiferromagnetically below 4 K, which could coexist with superconductivity.

PMID:: 18643616; [PubMed]

LinkOut - more resources

Full Text Sources

Supplemental Content

Save items

Related citations in PubMed

Magnetic order close to superconductivity in the iron-based layered LaO1-xFxFeAs systems. [Nature. 2008]
Magnetic order close to superconductivity in the iron-based layered LaO1-xFxFeAs systems.
de la Cruz C, Huang Q, Lynn JW, Li J, Ratcliff W 2nd, Zarestky JL, Mook HA, Chen GF, Luo JL, Wang NL, et al. Nature. 2008 Jun 12; 453(7197):899-902. Epub 2008 May 28.
Effects of Co doping on the transport properties and superconductivity in CeFe(1-x)Co(x)AsO. [J Phys Condens Matter. 2010]
Effects of Co doping on the transport properties and superconductivity in CeFe(1-x)Co(x)AsO.
Zhao LD, Berardan D, Byl C, Pinsard-Gaudart L, Dragoe N. J Phys Condens Matter. 2010 Mar 24; 22(11):115701. Epub 2010 Mar 5.
Coexistence of static magnetism and superconductivity in SmFeAsO(1-x)F(x) as revealed by muon spin rotation. [Nat Mater. 2009]
Coexistence of static magnetism and superconductivity in SmFeAsO(1-x)F(x) as revealed by muon spin rotation.
Drew AJ, Niedermayer Ch, Baker PJ, Pratt FL, Blundell SJ, Lancaster T, Liu RH, Wu G, Chen XH, Watanabe I, et al. Nat Mater. 2009 Apr; 8(4):310-4. Epub 2009 Feb 22.
A large iron isotope effect in SmFeAsO(1 - x)F(x) and Ba(1 - x)K(x)Fe(2)As(2). [Nature. 2009]
A large iron isotope effect in SmFeAsO(1 - x)F(x) and Ba(1 - x)K(x)Fe(2)As(2).
Liu RH, Wu T, Wu G, Chen H, Wang XF, Xie YL, Ying JJ, Yan YJ, Li QJ, Shi BC, et al. Nature. 2009 May 7; 459(7243):64-7.
Review Superconductivity. [Sci Prog. 2004]
Review Superconductivity.
Grosche FM. Sci Prog. 2004; 87(Pt 1):51-78.

See reviews... See all...

Cited by 3 PubMed Central articles

Superconductivity above 30 K in alkali-metal-doped hydrocarbon. [Sci Rep. 2012]
Superconductivity above 30 K in alkali-metal-doped hydrocarbon.
Xue M, Cao T, Wang D, Wu Y, Yang H, Dong X, He J, Li F, Chen GF. Sci Rep. 2012; 2:389. Epub 2012 Apr 30.
Iron pnictides as a new setting for quantum criticality. [Proc Natl Acad Sci U S A. 2009]
Iron pnictides as a new setting for quantum criticality.
Dai J, Si Q, Zhu JX, Abrahams E. Proc Natl Acad Sci U S A. 2009 Mar 17; 106(11):4118-21. Epub 2009 Mar 9.
Superconductivity in the PbO-type structure alpha-FeSe. [Proc Natl Acad Sci U S A. 2008]
Superconductivity in the PbO-type structure alpha-FeSe.
Hsu FC, Luo JY, Yeh KW, Chen TK, Huang TW, Wu PM, Lee YC, Huang YL, Chu YY, Yan DC, et al. Proc Natl Acad Sci U S A. 2008 Sep 23; 105(38):14262-4. Epub 2008 Sep 5.

Related information

Related Citations
Calculated set of PubMed citations closely related to the selected article(s) retrieved using a word weight algorithm. Related articles are displayed in ranked order from most to least relevant, with the “linked from” citation displayed first.
Cited in PMC
Full-text articles in the PubMed Central Database that cite the current articles.

Recent activity

Clear Turn Off Turn On

Superconductivity at 41 K and its competition with spin-density-wave instability...
Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO1-xFxFeAs.
Phys Rev Lett. 2008 Jun 20 ;100(24):247002. Epub 2008 Jun 16 .

PubMed
Comparative membrane locations and activities of human monoamine oxidases expres...
Comparative membrane locations and activities of human monoamine oxidases expressed in yeast.
FEBS Lett. 1991 Jul 29 ;286(1-2):142-6.

PubMed
Observation of wave turbulence in vibrating plates.
Observation of wave turbulence in vibrating plates.
Phys Rev Lett. 2008 Jun 13 ;100(23):234504. Epub 2008 Jun 13 .

PubMed
Tonically discharging neurons of monkey striatum respond to preparatory and rewa...
Tonically discharging neurons of monkey striatum respond to preparatory and rewarding stimuli.
Exp Brain Res. 1991 ;84(3):672-5.

PubMed
Activity-dependent stochastic resonance in recurrent neuronal networks.
Activity-dependent stochastic resonance in recurrent neuronal networks.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jun ;77(6 Pt 1):060903. Epub 2008 Jun 20 .

PubMed

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

PubMed

Result Filters

Display Settings:

Send to:

Superconductivity at 41 K and its competition with spin-density-wave instability in layered CeO1-xFxFeAs.

Source

Abstract

LinkOut - more resources

Full Text Sources

Supplemental Content

Save items

Related citations in PubMed

Cited by 3 PubMed Central articles

Related information

Recent activity

Simple NCBI Directory

Getting Started

Resources

Popular

Featured

NCBI Information