A variable field neutron study of the negative magnetoresistive ruthenocuprate RuSr2Nd0.9Y0.2Ce0.9Cu2O10-δ

A variable field neutron diffraction study of the ruthenocuprate RuSr2Nd0.9Y0.2Ce0.9Cu2O10-delta, which exhibits large negative magnetoresistance, has been performed in order to determine the variation of the magnetic structure with magnetic field. Upon application of a magnetic field the and magnet...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-03, Vol.310 (2), p.1961-1962
Main Authors: MCLAUGHLIN, A. C, ATTFIELD, J. P
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Physics
Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)
Studies of specific magnetic materials
Superconductivity
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Summary:A variable field neutron diffraction study of the ruthenocuprate RuSr2Nd0.9Y0.2Ce0.9Cu2O10-delta, which exhibits large negative magnetoresistance, has been performed in order to determine the variation of the magnetic structure with magnetic field. Upon application of a magnetic field the and magnetic peaks reduce in intensity as the spins in the RuO2 and CuO2 layer cant into a ferromagnetic alignment in the ab-plane. This results in increased spin polarised transport in the CuO2 plane and hence large negative magnetoresistance.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.10.875