Kreyssig, A., Green, M.A., Lee, Y., Samolyuk, G.D., Zajdel, P., Lynn, J.W., Bud'ko, S.L., Torikachvili, M.S., Ni, N., Nandi, S., and others. (2008) Pressure-induced volume-collapsed tetragonal phase of CaFe 2As2 as seen via neutron scattering. Physical Review B, 78 (18). p. 184517. ISSN 1098-0121. (doi:10.1103/PhysRevB.78.184517) (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) (KAR id:51012)
| 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. | |
| Official URL: http://dx.doi.org/10.1103/PhysRevB.78.184517 |
Abstract
Recent investigations of the superconducting iron-arsenide families have highlighted the role of pressure, be it chemical or mechanical, in fostering superconductivity. Here we report that CaFe2As2 undergoes a pressure-induced transition to a nonmagnetic volume "collapsed" tetragonal phase, which becomes superconducting at lower temperature. Spin-polarized total-energy calculations on the collapsed structure reveal that the magnetic Fe moment itself collapses, consistent with the absence of magnetic order in neutron diffraction. © 2008 The American Physical Society.
| Item Type: | Article |
|---|---|
| DOI/Identification number: | 10.1103/PhysRevB.78.184517 |
| Additional information: | Unmapped bibliographic data: C7 - 184517 [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - Phys. Rev. B Condens. Matter Mater. Phys. [Field not mapped to EPrints] AD - Ames Laboratory, US DOE, Ames, IA 50011, United States [Field not mapped to EPrints] AD - Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States [Field not mapped to EPrints] AD - NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, 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] AD - Department of Chemistry, University College of London, 20 Gordon Street, London W1X 0AJ, United Kingdom [Field not mapped to EPrints] AD - Department of Physics, San Diego State University, San Diego, CA 92182, United States [Field not mapped to EPrints] AD - Helmholtz-Zentrum Berlin für Materialien und Energie, Glienicker Str. 100, 14109 Berlin, Germany [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints] |
| Subjects: |
Q Science > QC Physics > QC173.45 Condensed Matter Q Science > QD Chemistry > QD478 Solid State Chemistry |
| Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
| Depositing User: | Giles Tarver |
| Date Deposited: | 15 Oct 2015 10:58 UTC |
| Last Modified: | 05 Nov 2024 10:36 UTC |
| Resource URI: | https://kar.kent.ac.uk/id/eprint/51012 (The current URI for this page, for reference purposes) |
University of Kent Author Information
Green, M.A..
| Creator's ORCID: |
 https://orcid.org/0000-0002-7886-6205
|
|---|---|
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