Incommensurate magnetic ordering in Ti-doped Sr3Ru2O7

P. Steffens, J. Farrell, S. Price, A. P. Mackenzie, Y. Sidis, K. Schmalzl, and M. Braden
Phys. Rev. B 79, 054422 – Published 20 February 2009

Abstract

Magnetic correlations in Ti-substituted Sr3(Ru1xTix)2O7 have been studied by elastic and inelastic neutron-scattering techniques. Below transition temperatures of the order of 20 K, the samples with 7.5 and 10% of Ti content exhibit an incommensurate spin-density wave ordering with a propagation vector qic=(0.24,0.24,0), which does not reflect the dominant magnetic instabilities in pure Sr3Ru2O7. Strong inelastic correlations near qic were found to persist in Sr3(Ru1xTix)2O7 far above the magnetic ordering; they become gapped in the ordered state.

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  • Received 17 July 2008

DOI:https://doi.org/10.1103/PhysRevB.79.054422

©2009 American Physical Society

Authors & Affiliations

P. Steffens1,*, J. Farrell2, S. Price1, A. P. Mackenzie2, Y. Sidis3, K. Schmalzl4, and M. Braden1,†

  • 1II. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, D-50937 Köln, Germany
  • 2Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St. Andrews, North Haugh, St. Andrews KY16 9SS, Scotland
  • 3Laboratoire Léon Brillouin, CEA/CNRS, F-91191 Gif-sur-Yvette CEDEX, France
  • 4IFF, Forschungszentrum Jülich GmbH, JCNS at ILL, 38042 Grenoble Cedex 9, France

  • *Present address: Institut Laue Langevin, Grenoble, France; steffens@ill.eu
  • braden@ph2.uni-koeln.de

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Issue

Vol. 79, Iss. 5 — 1 February 2009

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