Nanoscale Electronic Order in Iron Pnictides

Scientific paper - Original scientific paper

• Author: G. Lang
• Author: H.-J. Grafe
• Author: Dalibor Paar
• Author: F. Hammerath
• Author: K. Manthey
• Author: G. Behr
• Author: J. Werner
• Author: B. Buchner
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

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... More coexist. Implications for the interplay of static magnetism and superconductivity are discussed. Less

• Keywords (english): pnictides; charge distribution; NQR
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review Letters
• Numbering: vol. 104, no. 9, 097001
• p-ISSN: 0031-9007
• e-ISSN: 1079-7114
• DOI: https://doi.org/10.1103/PhysRevLett.104.097001
• URN:NBN: urn:nbn:hr:217:250157
• Publication: 2010
• Project: Number: 119-1191458-1022; Title (croatian): Mikrovalna istraživanja novih materijala; Leader: Miroslav Požek; Jurisdiction: Croatia; Funding stream: ZP
• Document URL: http://link.aps.org/doi/10.1103/PhysRevLett.104.097001
• Type of resource: Text
• Access conditions: Open access
• Public note: Copyright (2010) by the American Physical Society. Received 21 December 2009; published 3 March 2010.
• Created on: 2019-11-01 20:49:25