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Spin fluctuations away from (pi,0) in the superconducting phase of molecular-intercalated FeSe

Abstract:

Magnetic fluctuations in the molecular-intercalated FeSe superconductor Lix(ND2)y(ND3)1-yFe2Se2 (Tc=43K) have been measured by inelastic neutron scattering from a powder sample. The strongest magnetic scattering is observed at a wave vector Q≈1.4 Å-1, which is not consistent with the (π,0) nesting wave vector that characterizes magnetic fluctuations in several other iron-based superconductors but is close to the (π,π/2) position found for AxFe2-ySe2 systems. At the energies probed (∼5kBTc), t...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.87.220508

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Journal:
Physical Review B More from this journal
Volume:
87
Issue:
22
Publication date:
2013-06-27
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Language:
English
Pubs id:
pubs:415687
UUID:
uuid:e729de02-9c7e-4988-b4a0-0bfb4fa4ab81
Local pid:
pubs:415687
Source identifiers:
415687
Deposit date:
2013-11-17

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