Intrinsic properties of stoichiometric LaFePO

McQueen, T.M., Regulacio, M., Williams, A.J., Huang, Q., Lynn, J.W., Hor, Y.S., West, D.V., Green, M.A., Cava, R.J. (2008) Intrinsic properties of stoichiometric LaFePO. Physical Review B - condensed matter and materials physics, 78 (2). p. 24521. ISSN 1098-0121. (doi:10.1103/PhysRevB.78.024521) (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://dx.doi.org/10.1103/PhysRevB.78.024521

Abstract

DC and ac magnetization, resistivity, specific-heat, and neutron-diffraction data reveal that stoichiometric LaFePO is metallic and non-superconducting above T=0.35K, with γ=12.5 mJ mol K2. Neutron-diffraction data at room temperature and T=10K are well described by the stoichiometric, tetragonal ZrCuSiAs structure, and show no signs of structural distortions or long-range magnetic ordering to an estimated detectability limit of 0.07 μB /Fe. We propose a model based on the shape of the iron-pnictide tetrahedron that explains the differences between LaFePO and LaFeAsO, the parent compound of the recently discovered high-Tc oxyarsenides, which, in contrast, shows both structural and spin-density wave transitions. © 2008 The American Physical Society.

Item Type: Article
DOI/Identification number: 10.1103/PhysRevB.78.024521
Additional information: Unmapped bibliographic data: C7 - 024521 [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 - Department of Chemistry, Princeton University, Princeton, NJ 08544, 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 20742-2115, United States [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: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 15 Oct 2015 11:02 UTC
Last Modified: 29 May 2019 16:09 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/51014 (The current URI for this page, for reference purposes)
  • Depositors only (login required):