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We report magnetic circular dichroism (MCD) studies on the polycrystalline LaMn 1-x Al x O 3+δ series with x=0-0.2. The Mn-2p MCD was recorded in the temperature range from 45 to 300 K for samples with x=0, 0.075, 0.1 and 0.15. It was seen that unlike ac-susceptibility no second transition in MCD was observed at lower temperatures in the samples with x>=0...
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