Temperature and doping-level dependence of magnetic order in La2-x SrxNiO4+δ studied by muon spin rotation

Jestädt, Th. and Chow, K.H. and Blundell, S.J. and Hayes, W. and Pratt, F.L. and Lovett, B.W. and Green, M.A. and Millburn, J.E. and Rosseinsky, M.J. (1999) Temperature and doping-level dependence of magnetic order in La2-x SrxNiO4+δ studied by muon spin rotation. Physical Review B - Condensed Matter and Materials Physics, 59 (5). pp. 3775-3782. ISSN 01631829 (ISSN). (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)

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Abstract

We report muon-spin-rotation (μSR) measurements on a series of compounds with composition La2-xSrxNiO4+δ with strontium doping level x between 0 and 1. A magnetic transition is found in all the samples studied, which occurs at a composition-dependent temperature, TM. Below TM clear precession signals are observed in zero applied magnetic field for all x, indicating the existence of at least short-range magnetic order on a time scale longer than 10-8 s. Above TM the magnetic correlation times decrease by several orders of magnitude. At xâ??0.33, we find peaks in both TM and the zero-temperature staggered magnetization, an observation which we attribute to the higher degree of localization of the holes at this doping level. The measurements of TM as a function of x extend the determination of Néel temperatures by previous neutron diffraction and μSR measurements. © 1999 The American Physical Society.

Item Type: Article
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - Phys. Rev. B Condens. Matter Mater. Phys. [Field not mapped to EPrints] AD - Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom [Field not mapped to EPrints] AD - Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, United Kingdom [Field not mapped to EPrints] AD - Department of Physics, Lehigh University, 16 Memorial Drive East, Bethlehem, PA 18015, 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: 21 Oct 2015 13:56 UTC
Last Modified: 21 Jan 2016 11:18 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/51149 (The current URI for this page, for reference purposes)
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