Abstract

The magnetic structure and its correlation with the Jahn-Teller (JT) distortion in lightly doped ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3}$ $(0.11<~x<~0.185)$ have been studied as a function of temperature from 10--300 K using neutron powder diffraction. A correlation between the ferromagnetic spin orientation and the coherent JT distortion was observed, indicating a coupling between the structural and the magnetic properties. The arrangement of the spins varies from ferromagnetic ordered mainly along the b axis $(x=0.11)$ to ferromagnetic almost along the c axis $(x=0.185)$ in the Pbnm symmetry.

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