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Nanoscale electronic order in iron pnictides (CROSBI ID 158662)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Lang, G. ; Grafe, H.- J. ; Paar, Dalibor ; Hammerath, F. ; Manthey, K. ; Behr, G. ; Werner, J. ; Buchner, B. Nanoscale electronic order in iron pnictides // Physical review letters, 104 (2010), 9; 097001-1-097001-4. doi: 10.1103/PhysRevLett.104.097001

Podaci o odgovornosti

Lang, G. ; Grafe, H.- J. ; Paar, Dalibor ; Hammerath, F. ; Manthey, K. ; Behr, G. ; Werner, J. ; Buchner, B.

engleski

Nanoscale electronic order in iron pnictides

The charge distribution in RFeAs (R=La, Sm) iron pnictides is probed using As NQR. Whereas undoped and optimally-doped/overdoped compounds feature a single charge environment, two charge environments are detected in the underdoped region. Spin- lattice relaxation measurements show their coexistence at the nanoscale. Together with the quantitative variations of the spectra with doping, they point at a local electronic order in the iron layers, where low- and high-doping-like regions would coexist. Implications for the interplay of static magnetism and superconductivity are discussed.

pnictides; charge distribution; NQR

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Podaci o izdanju

104 (9)

2010.

097001-1-097001-4

objavljeno

0031-9007

10.1103/PhysRevLett.104.097001

Povezanost rada

Fizika

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