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. 2005 Aug 25;109(33):15667-70.
doi: 10.1021/jp052762s.

Direct investigation of orbital ordering in a colossal magnetoresistance manganite by means of X-ray linear dichroism at the Mn L edge

K Kuepper, F Bondino, K C Prince, M Zangrando, M Zacchigna, A F Takás, T Crainic, M Matteucci, F Parmigiani, A Winiarski, V R Galakhov, Ya M Mukovskii, M Neumann

Direct investigation of orbital ordering in a colossal magnetoresistance manganite by means of X-ray linear dichroism at the Mn L edge

K Kuepper et al. J Phys Chem B. .

Abstract

We have investigated for the first time the orbital ordering in a three-dimensional colossal magnetoresistance manganite, namely La(7/8)Sr(1/8)MnO3, by applying soft X-ray linear dichroism (XLD) to the Mn L edge. We found that the cooperative Jahn-Teller distorted orthorhombic phase, which is present at a temperature of 240 K, is probably accompanied by a predominantly cross type (x2 - z2)/(y2 - z2) orbital ordering. This result is discussed in the light of different exchange interaction models.

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