Coexistence of the spini-density-wave and superconductivity in the Ba1-xKxFe2As2

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Europhysics Letters

OSTI ID:960473

Bao, Wei ^[1]; Chen, H ^[2]; Ren, Y ^[3]; Qiu, Y ^[4]; Liu, R ^[5]; Wu, G H ^[2]; Wu, T ^[5]; Xie, Y L ^[2]; Wang, F ^[5]; Huang, Q ^[4]; Chen, X H ^[2]

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1. Los Alamos National Laboratory
2. HEFEI NAT. LAB
3. ANL
4. NIST CENTER FOR NEUTRON
5. HEFEI NAT. LAB.

The relation between the spin-density-wave (SDW) and superconducting order is a central topic in current research on the FeAs-based high T{sub c} superconductors. Conflicting results exist in the LaFeAs(O,F)-class of materials, for which whether the SDW and superconductivity are mutually exclusive or they can coexist has not been settled. Here we show that for the (Ba,K)Fe{sub 2}As{sub 2} system, the SDW and superconductivity can coexist in an extended range of compositions. The availability of single crystalline samples and high value of the energy gaps would make the materials a model system to investigate the high T{sub c} ferropnictide superconductivity.

• Research Organization: Los Alamos National Laboratory (LANL)
• Sponsoring Organization: DOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 960473
• Report Number(s): LA-UR-08-04953; LA-UR-08-4953
• Journal Information: Europhysics Letters, Journal Name: Europhysics Letters; ISSN 0295-5075; ISSN EULEEJ
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ENERGY GAP
HIGH-TC SUPERCONDUCTORS
IRON ARSENIDES
MATERIALS
PNICTIDES
RANGE
SPIN WAVES
SUPERCONDUCTIVITY