Abstract
The nature of the competing ferromagnetic and incommensurate spin correlations in the spin-glass phase of ${\text{La}}_{0.85}{\text{Sr}}_{0.15}{\text{CoO}}_{3}$ has been investigated by various neutron scattering techniques. Spin-polarized scattering indicates that the observed incommensurate peaks are dominantly magnetic in nature. Magnetic field experiments show that a field applied perpendicular to the short-range ordering wave vector destroys the incommensurate correlations and induces long-range ferromagnetic order. However, even for fields up to 7 T, short-range ferromagnetic correlations still coexist with the long-range ordered regions.
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