Magnetization of Charge-ordered la(2-x)sr(x)nio(4+delta)
- We report magnetization measurements on La(2-x)Sr(x)NiO(4+ delta) single crystals, with 0 < x < 0.5. Glassy behaviour associated with the formation of spin-charge stripes, and a separate spin-glass phase at low temperatures were observed. We have also found a `memory effect' in the magnetic field -- temperature history, which is found to be suppressed in the low temperature spin state of the x = 0.33 crystal.
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2 pages, 2 figures. Presented at ICM2003 to appear in J. Magn. Magn.