Structure and magnetism of single crystal Sr4Ru3O10: A ferromagnetic triple-layer ruthenate

M. K. Crawford, R. L. Harlow, W. Marshall, Z. Li, G. Cao, R. L. Lindstrom, Q. Huang, and J. W. Lynn
Phys. Rev. B 65, 214412 – Published 22 May 2002
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Abstract

We have determined the structure and magnetic properties of flux-grown single crystals of the triple-layer ruthenate Sr4Ru3O10 by x-ray diffraction and magnetic susceptibility measurements, respectively. The orthorhombic unit cell has Pbam space group symmetry and contains two crystallographically independent triple layers. The RuO6 octahedra in the outer two layers of each triple layer are rotated by an average of 5.6° around the c axis, while the octahedra of the inner layers are rotated in the opposite sense by an average of 11.0°. The Curie temperature of these ferromagnetic crystals is TCurie=105K, with a saturated moment of 1.0μB/Ru4+ ion. Thus Sr4Ru3O10 is a layered ferromagnetic ruthenate in the Ruddlesden-Popper (R-P) series Srn+1RunO3n+1, which also includes the unconventional superconductor Sr2RuO4 (n=1), the enhanced paramagnetic metal Sr3Ru2O7 (n=2), and the pseudocubic ferromagnetic metal SrRuO3 (n=).

  • Received 4 March 2002

DOI:https://doi.org/10.1103/PhysRevB.65.214412

©2002 American Physical Society

Authors & Affiliations

M. K. Crawford1, R. L. Harlow1, W. Marshall1, Z. Li1, G. Cao2, R. L. Lindstrom3, Q. Huang3,4, and J. W. Lynn3

  • 1DuPont Central Research and Development Department, Wilmington, Delaware 19880-0356
  • 2Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506
  • 3NIST Center for Neutron Research, Gaithersburg, Maryland 20899
  • 4Department of Materials and Nuclear Engineering, University of Maryland, College Park, Maryland 20742

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Vol. 65, Iss. 21 — 1 June 2002

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