Skip to main content

Mössbauer study of the 11 iron-based superconductors parent compound Fe 1+xTe

BÅ?achowski, A., Ruebenbauer, K., Zajdel, P., Rodriguez, E.E., Green, M.A. (2012) Mössbauer study of the 11 iron-based superconductors parent compound Fe 1+xTe. Journal of Physics Condensed Matter, 24 (38). 0-0. ISSN 09538984 (ISSN). (doi:10.1088/0953-8984/24/38/386006) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://www.scopus.com/inward/record.url?eid=2-s2.0...

Abstract

57Fe Mössbauer spectroscopy was applied to investigate the superconductor parent compound Fe 1+xTe for x=0.06, 0.10, 0.14, 0.18 within the temperature range 4.2-300K. A spin density wave (SDW) within the iron atoms occupying regular tetrahedral sites was observed, with the square root of the mean square amplitude at 4.2K varying between 9.7 and 15.7T with increasing x. Three additional magnetic spectral components appeared due to the interstitial iron distributed over available sites between the Fe-Te layers. The excess iron showed hyperfine fields at approximately 16, 21 and 49T for three respective components at 4.2K. The component with a large field of 49T indicated the presence of isolated iron atoms with large localized magnetic moments in interstitial positions. Magnetic ordering of the interstitial iron disappeared in accordance with the fallout of the SDW with increasing temperature. © 2012 IOP Publishing Ltd.

Item Type: Article
DOI/Identification number: 10.1088/0953-8984/24/38/386006
Additional information: Unmapped bibliographic data: C7 - 386006 [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - J Phys Condens Matter [Field not mapped to EPrints] AD - Mössbauer Spectroscopy Laboratory, Pedagogical University, ulica Podchorazych 2, PL-30-084 Kraków, Poland [Field not mapped to EPrints] AD - Division of Physics of Crystals, Institute of Physics, Silesian University, ulica Uniwersytecka 4, PL-40-007 Katowice, Poland [Field not mapped to EPrints] AD - NIST Center for Neutron Research, NIST, 100 Bureau Drive, Gaithersburg, MD 20878, United States [Field not mapped to EPrints] AD - Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, United States [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Hyperfine field, Interstitial iron, Interstitial positions, Iron atoms, Iron-based superconductors, Localized magnetic moments, Mean square amplitudes, Mossbauer, Parent compounds, Spectral components, Square roots, Ssbauer spectroscopies, Temperature range, Tetrahedral sites, High temperature superconductors, Magnetic moments, Superconductivity, Iron
Subjects: Q Science > QC Physics > QC173.45 Condensed Matter
Q Science > QD Chemistry > QD478 Solid State Chemistry
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 14 Oct 2015 11:23 UTC
Last Modified: 29 May 2019 16:08 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50963 (The current URI for this page, for reference purposes)
  • Depositors only (login required):