Jahn-Teller transition in La1–xSrxMnO3 in the low-doping region (0<x< ̴0.1)

Chatterji, T.
Ouladdiaf, B.
Mandal, P.
Bandyopadhyay, B.
Ghosh, B.

Publication date

August 2002

Abstract

We have investigated the Jahn-Teller transition in La1-xSrxMnO3 by high-temperature powder neutron diffraction in the low- doping region (0<x&LE;0.1). The Jahn-Teller transition temperature which is about T-JT&AP;750 K for stoichiometric LaMnO3 is drastically reduced on doping with Sr, becoming T- JT&AP;475 K for x=0.10. The previously identified metrically cubic orthorhombic O phase (Pmnb) for x=0 becomes clearly (also metrically) orthorhombic for small doping x=0.05 and remains so in the doping range investigated. The Jahn-Teller transition is accompanied only by the partial reduction of the distortion of the MnO6 octahedra. From the distortion of the MnO6 octahedra we have determined the orbital mixing coefficients

Extracted data

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Jahn-Teller transition in La<sub>1–x</sub>Sr<sub>x</sub>MnO<sub>3</sub> in the low-doping region (0<x< ̴0.1)

Abstract

Extracted data

Jahn-Teller transition in La<sub>1–x</sub>Sr<sub>x</sub>MnO<sub>3</sub> in the low-doping region (0<x< ̴0.1)

Abstract

Extracted data

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